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Disklok Diamond Edition steering wheel lock unveiled

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The best car shampoo tested by CAR 2024

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The best steering wheel locks 2024

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The best car roof bags 2024

In a world where the fuel is becoming less and less popular, why are diesel engine cleaners important as a :a[fuel additive]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-fuel-additives/' }? The unmistakable clatter of a diesel engine is becoming a rarer sound nowadays. But in contrast to what manufacturers and governments are pushing towards nowadays, there are still masses of old diesels on the road.

Until they're frivolously outlawed in however many years that may or may not be, there will be a place on our roads for diesel cars. If you're travelling long distances on motorways, the fuel efficiency of a diesel engine is almost unbeatable to the point that no PHEV or petrol car can match. The outside lanes of the M1 and other busy roads are still awash with Mercedes E350Ds and Audi A4 TDIs. Diesel may not be popular, but they are still important to everyday lives.

One of the drawbacks of diesel, however, is carbon deposits that naturally build up over time. These hard carbon deposits reduce performance and engine efficiency, so it's a good idea to get them removed. Thankfully there are a number of fuel additives available that'll flush these deposits out as you drive along. And in case you're wondering, :a[petrol engine cleaners]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-petrol-injector-cleaners/' } are on the market as well.

## The best diesel engine cleaners 2025 at a glance

We've already covered :a[diesel injector cleaners]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-diesel-injector-cleaners/' }, but there are more additives designed for different purposes. Let us guide you through the best diesel engine cleaners on the market to clean out the pesky bits that usually go wrong with cars powered by the stuff.

## The best diesel engine cleaners 2025 {#h-the-best-diesel-engine-cleaners}

## FAQs and what you need to know about diesel engine cleaners: {#h-what-you-need-to-know-about-diesel-engine-cleaners}

### Is diesel engine cleaner worth it? {#h-why-do-you-need-diesel-engine-cleaner}

Diesel loves to create nasty carbon deposits over time which will make your engine less efficient. The tell-tale signs include black smoke and reluctance during starting. An engine full of deposits will also suffer from less performance and increased fuel usage. That's why these fuel cleaners are so useful and ultimately worth it on higher mileage vehicles, they help dissolve these deposits and help maintain its performance and efficiency.

### How do I know what diesel engine cleaner to buy? {#h-how-to-know-what-engine-cleaner-to-buy}

It can be quite hard to diagnose where the deposits are building up in your engine, so for most applications, a generalised cleaner will probably be better. You might even want to try adding an :a[engine oil additive]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-engine-oil-additives/' } to help things along. If, however, you can pinpoint the issue, a specialised engine cleaner will have insanely good results. Here are the common warning signs:

If you're running a turbo diesel engine and can feel a noticeable loss of power, there's a good chance the turbo could use a cleanout. If you're struggling on start-up and black smoke from the exhaust points to an injector problem, invest in some injector cleaners to prevent these issues. Got an MOT coming up? If you're worried about emissions, then a catalytic converter cleaner could make the difference between a pass and a fail.

### What's the difference between diesel engine cleaner and injector cleaner?

Simply put, injectors are one of the most important parts of an engine. Their role is to inject fuel into the combustion chambers, and if they're clogged up slightly, a noticeable difference in running smoothness is evident. An engine's idle can bounce around a bit, and this can be caused by blocked and/or damaged injectors.

Diesel injector cleaner is designed to tackle exactly this, and the fluids are formulated to break down and flush the soot built-up within those delicate and tiny components. Diesel engine cleaners on the other hand are formulated slightly differently and aren't so focused on one component or another, rather a mix of different formulas to tackle a range of engine parts. Cataclean's engine cleaner is a good example, whereby it can tackle more than a few aspects of a slightly unhealthy diesel engine. STP's injector cleaner however, is designed for just one or two purposes in mind.

### How often should I use diesel engine cleaner?

This depends on what the manufacturer labels tell you. There isn't a set schedule across the board as all products are different and require different types of usage. STP will recommend using some of its products every 400-miles whereas Redex will recommend you use its diesel system cleaner with every tank. Liqui Moly recommends its DPF cleaner is used every 1,240 miles, so it's worth checking the labels and deciding on which cleaner is best for your needs and your vehicle.

**_:a[Ryan Gilmore]{href='https://products.carmagazine.co.uk/author/ryan-gilmore/' } is the Deputy Autos and Tools Editor for CAR, specialising in car cleaning and hand tools. With an MA in Automotive Journalism, when he's not testing buckets he can be found looking at old Porsches._**

### For verdicts, scoops, news and analysis from the team, delivered direct to your inbox, subscribe to the :a[CAR newsletter]{href='https://www.carmagazine.co.uk/car-newsletter/' }. {#h-for-verdicts-scoops-news-and-analysis-from-the-team-delivered-direct-to-your-inbox-subscribe-to-the-car-newsletter}

### You can enjoy CAR in its traditional :a[print format]{href='https://www.greatmagazines.co.uk/car-magazine' target='_blank' rel='noopener noreferrer'}, or one of the swelling number of :a[digital editions]{href='https://www.carmagazine.co.uk/car-news/magazine/digital-preview-of-the-new-issue-of-car-magazine/' }, optimised for Apple iPhones, Android devices, iPads, tablets and desktop computers. {#h-you-can-enjoy-car-in-its-traditional-print-format-or-one-of-the-swelling-number-of-digital-editions-optimised-for-apple-iphones-android-devices-ipads-tablets-and-desktop-computers}

The best diesel engine cleaner 2025

The final part of any :a[car cleaning]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-car-cleaning-products/' } process is tackling the windows with a good car glass cleaner. Windows collect a lot of grease and grime, which needs to be lifted without leaving behind residue or smears. Keeping your glass clean is more essential to safety than you might think. If you've ever been gazed by the sun and your windscreen is smeared with dirt, it can be difficult to see out of. Keeping the glass clear ensures you'll have good visibility while driving.

Glass can be a tricky surface to clean well, but looks stunning if done properly. :a[Water spot removers]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-water-spot-removers/' } can work, but dedicated glass cleaners are the most ideal for the job. Aside from the obvious safety benefit of being able to see through crystal clear glass, clean car windows complete the look of a freshly cleaned and detailed car.

## The best car glass cleaners at a glance

:a[All-purpose cleaners]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-car-all-purpose-cleaner/' } (APCs) can be used if you have to, but most aren't designed for window-specific muck. It's also very important to check you aren't using a glass cleaner with ammonia in it, as this reacts very poorly with tinted windows. Your technique will be just as important as which product you use. Using the right :a[microfibre cloth]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/microfibre-car-cloths/' } will be essential. We gathered some of the best glass cleaners on the market and tested them on a couple of cars. Both could've done with a window clean, so we decided to do just that.

## The best car glass cleaners tested 2025 {#h-the-best-car-glass-cleaners-tested-2024}

## Frequently asked questions about glass cleaners

The best glass cleaner depends on your needs, but we found the :a[Gtechniq Auto G6 Perfect Glass]{href='https://www.amazon.co.uk/Gtechniq-G6-0-5-Perfect-Glass/dp/B00S8B7Q28/?tag=qcararticle208-21' target='_blank' rel='noreferrer noopener nofollow'} to come out on top with a lovely crystal clear finish and great value for money. The :a[Gyeon Q2M Glass]{href='https://www.amazon.co.uk/Gyeon-GY-1350-Q%C2%B2M-Glass-500ml/dp/B01N2MANEH/?tag=qcararticle208-21' target='_blank' rel='noreferrer noopener nofollow'} is also a wonderful choice, and you should consider the :a[Autoglym Fast Glass]{href='https://www.amazon.co.uk/Autoglym-AG-185003-Glass-500ml/dp/B0011569SK/?tag=qcararticle208-21' target='_blank' rel='noreferrer noopener nofollow'} since it comes from a trusted brand. Other brands that should be considered are Bilt Hamber, 26JPN, and Car Gods.

### Can glass cleaner be used on the infotainment screen?

While it is possible to use some glass cleaners on your car's infotainment screen we would recommend you exercise caution. Glass cleaners that contain ammonia or alcohol can damage your infotainment screen's protective layer. Some glass cleaners, like :a[Gyeon Q2M Glass]{href='https://www.amazon.co.uk/Gyeon-GY-1350-Q%C2%B2M-Glass-500ml/dp/B01N2MANEH/?tag=qcararticle208-21' target='_blank' rel='noreferrer noopener nofollow'}, are suitable to be used on infotainment screens, but we would always advice to read the manufacturer's usage instructions and labels before you apply the product.

### Can I use glass cleaner on tinted windows?

Yes you can, but you should look for a glass cleaner that is ammonia-free, as cleaners with ammonia can damage the surface of the tint. Of course, it is always important to read the manufacturer's usage instructions and labels before you apply the product.

## What to look for in a good car glass cleaner

**Misting** – The trigger of the glass cleaner is crucial for delivering a thin but even misting of the stuff onto the surface. This is not only economical, but less product on the glass will make clearing it off without causing streaks easier. For a deeper clean involving dead bugs, you may be better off with a :a[dash of insect remover]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-car-insect-removers/' } before using the glass cleaner for the crystal clear finish.

**Base** – The majority of car glass cleaners are IPA (isopropyl alcohol) based. IPA is very effective at lifting oils but does evaporate fairly quickly, especially in direct sunlight. Wipes, bird poo remover, and foam products will use other chemicals to do the cleaning. These are similar ingredients used in home window cleaners, albeit not quite as strong. You should also be aware that glass cleaners containing Ammonia could risk damaging tinted glass, so be sure to check the small print before applying it to your vehicle.

**Smell** – Albeit nowhere near as bad as :a[like tar removers]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-tar-remover/' }, some glass cleaners will have a slight stench to them. They can smell like cheap clear spirits owing to their alcohol base. Higher-end products may mask this scent, but it's not by any means essential.

## How we tested the glass cleaners {#h-how-we-tested-the-glass-cleaners}

We took two test subject cars as the centrepiece of our group test: a BMW 520D Touring (F10) and a new Citroen C4X. With the BMW, we selected one to two individual windows to test the products on before proceeding. We then measured the effects side by side as we could easily judge the cleanliness of one window next to another.

With the Citroen, we took our favourites: the Gtechniq and Gyeon, and performed further testing before deciding on a winner, which would eventually be the G6. We cleaned the infotainment screen on the Citroen as well, and it was left looking spotless by the end.

## Who tested the glass cleaners? {#h-who-tested-the-glass-cleaners}

This group test was orchestrated by Aaron Hussain - a commercial content writer specialising in car care products on both CAR and its sister site, Parkers. Having organised previous group tests with alloy wheel cleaners and snow foams, he has a good grip of how to determine a fair test, playing field, and ultimately the winner of product group tests, and as an owner of a classic car, has a fine eye for detail after a job.

**_:a[Aaron Hussain]{href='https://products.carmagazine.co.uk/author/aaron-hussain/' } is a commercial content writer at Bauer Media writing for Parkers and CAR. He is obsessed with classic cars and anything with a fascinating story to tell._**

### You can enjoy CAR in its traditional :a[print format]{href='https://go.skimresources.com/?id=31715X1588124&amp;isjs=1&amp;jv=15.2.0-stackpath&amp;sref=https%3A%2F%2Fproducts.carmagazine.co.uk%2Fcar-accessories%2Ftechnology%2Fbest-rc-rock-crawler%2F&amp;url=https%3A%2F%2Fwww.greatmagazines.co.uk%2Fcar-magazine&amp;xguid=01ERHDM9YSCC13SZ23EMH87WRJ&amp;xs=1&amp;xtz=-60&amp;xuuid=ffd9fc23197c19ed28f243b7f2e41c8a&amp;xjsf=other_click__auxclick%20%5B2%5D' target='_blank' rel='noopener noreferrer'}, or one of the swelling number of :a[digital editions]{href='https://www.carmagazine.co.uk/car-news/magazine/digital-preview-of-the-new-issue-of-car-magazine/' }, optimised for Apple iPhones, Android devices, iPads, tablets and desktop computers. {#h-you-can-enjoy-car-in-its-traditional-print-format-or-one-of-the-swelling-number-of-digital-editions-optimised-for-apple-iphones-android-devices-ipads-tablets-and-desktop-computers}

Aaron Hussain cleans the inside of a car windscreen using a glass cloth

The best car glass cleaners tested 2025

It is probably one of the most hotly contested and competitive price points for car tech - the :a[best dash cams]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-dash-cams/' } under £100. It's the kind of bracket which attracts a wide range of interest due to the wide range of equipment available and the £50-£100 price range is where the fiercest competition in the dash cam battle takes place.

That's because all the established names such as Nextbase, Road Angel, and Thinkware try to compete against other, slightly newer brands such as 70mai, Cobra, and others to offer the best budget-orientated dash cams with as many features as they can offer.

This is the price range which attracts attention among buyers. For :a[high tech dash cams]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-high-tech-dash-cams/' }, it's all about features; for dash cams under £100, it's all about simplicity and just how much you can get for your money.

## The best dash cams under £100 at a glance

But what are the best dash cams under £100? Truth be told, the field is filled with more options than you might've originally thought - it even includes a couple of :a[dual dash cams.]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-dual-dash-cams/' } We've been scouring across the internet and compiled a list of our favourite dash cams that both represent quality, usability, and features yet won't break the bank.

## FAQs and what to remember with dash cams under £100

If they're from renowned brands, such as Nextbase, Road Angel and more, there is a place for them. What you have to expect is a lack of features to which their more expensive counterparts will have integrated. This can include anything from no Wi-Fi hotspots to lower (but not by much) quality recording, and most notably, the lack of a rear camera module.

The features on base model dash cams under £100 are generally less dense than on more expensive units - and you won't find any good :a[mirror dash cams]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-mirror-dash-cams/' } for that price point. But the target market is those wanting pure and utter simplicity in a dash cam rather than getting everything available. A simple, front-facing dash cam can be a great starter unit for those who've never owned one before and are curious to try one out without breaking the bank.

### What recording quality should I expect under £100?

At this price range, you should accept that Full HD or 1440p at most are the resolutions you'll get. There are 4K dash cams available for under £100, but they aren't worth your time. Full HD and 1440p provide great image quality, so you don't need to feel cheated.

:a[Dash cams with wi-fi]{href='https://products.carmagazine.co.uk/car-accessories/technology/wifi-dash-cams/' } that have apps need to be considered carefully. An app can be very useful for accessing footage and other things, but are only useful if they work properly. The best dash cam apps come from Garmin, Nextbase, Ring Automotive, and a small collection of other brands that have properly developed them.

In addition to recording footage, matched speed is a very helpful resource. Some mid-range dash cams have GPS as standard, and you can certainly get it if you want it. Just remember to consider the other important factors of dash cams, too.

The smallest dash cams, such as the :a[Garmin Mini 2]{href='https://products.carmagazine.co.uk/car-accessories/technology/garmin-dash-cam-mini-2-review/' target='_blank' rel='noreferrer noopener'}, are about the size of a garlic bulb. They hide very well behind a rear-view mirror but, if not engineered well, can be annoying to use. A dash cam with a screen size of two to three inches will be bigger but generally easier to use (Garmin Mini 2 notwithstanding).

_**:a[Aaron Hussain]{href='https://products.carmagazine.co.uk/author/aaron-hussain/' } is a commercial content writer at Bauer Media writing for Parkers and CAR. He is obsessed with classic cars and anything with a fascinating story to tell.**_

### For verdicts, scoops, news and analysis from the team, delivered direct to your inbox, subscribe to the :a[CAR newsletter]{href='https://www.carmagazine.co.uk/car-newsletter/' }. {#h-for-verdicts-scoops-news-and-analysis-from-the-team-delivered-direct-to-your-inbox-subscribe-to-the-nbsp-car-newsletter}

### You can enjoy CAR in its traditional :a[print format]{href='https://www.greatmagazines.co.uk/car-magazine' target='_blank' rel='noreferrer noopener'}, or one of the swelling number of :a[digital editions]{href='https://www.carmagazine.co.uk/car-news/magazine/digital-preview-of-the-new-issue-of-car-magazine/' }, optimised for Apple iPhones, Android devices, iPads, tablets and desktop computers. {#h-you-can-enjoy-car-in-its-traditional-nbsp-print-format-or-one-of-the-swelling-number-of-nbsp-digital-editions-optimised-for-apple-iphones-android-devices-ipads-tablets-and-desktop-computers}

The best dash cams under £100

More and more people are realising the value of having a dual :a[dashcam]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-dash-cams/' } installed to provide evidence in the case of an accident and reduce the chances of damage and theft. They can also get you a reduction in your insurance premium.

Even an entry-level :a[budget front-facing cam]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-dash-cams-under-100/' } will provide footage of the view of what's happening on the road ahead, but rear cameras are important as well. This is because rear collisions and events can happen, and you'll have a wider field of view in case you need to search for evidence that needs to be submitted to the police, insurance companies, or any other relevant parties.

There are all kinds of dual dashcams out there, from :a[mirror dashcams]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-mirror-dash-cams/' target='_blank' rel='noopener'} to high-tech units and many more. They are simply designed to give you as much vision as possible, which should help you should an accident or witness event happen. The top brands such as Nextbase, Road Angel, Thinkware, and Viofo all offer a dual setup to expand their model line-up.

## The best dual dashcams 2025 at a glance

However, looking for a dual dashcam setup isn't an easy task with the plethora of choice out there on the market. We've made things easier by compiling our favourites with features from basic to very clever levels. They range in price point and purpose, which should make things easier when finding the right dual dashcam for your needs.

## FAQs and things to remember with dual dashcams

### Where do you mount a dashcam? {#h-where-to-mount-your-dash-cam}

All the dashcams here are easy to set up. Instructions will show you the best placement for your dashcam. For the front camera, this is hidden behind the rearview mirror, and for the rear, it is adhered to the window, but make sure the position allows for a good view for the lens.

Wires and cables can be hidden in the headlining and various gaps if you want to :a[hardwire the dashcam]{href='https://products.carmagazine.co.uk/car-accessories/technology/how-to-hardwire-dash-cam/' } – instructions will inform you of the best way to do this for individual cameras.

You may want to consider hardwiring your dashcam rather than using the 12V plug. This is a little more fiddly but will allow you to take advantage of the camera's parking monitor software. Hardwiring kits can be bought instead of a 12V plug or separately, depending on the model. You can always opt to get your dashcam professionally fitted for a fee if you wish.

### Are dashcams worth it? {#h-why-a-dash-cam-is-important}

Before you even get down to the business of choosing a dashcam, you will be wondering whether a dashcam is worthwhile at all.

The first and strongest argument for having a dashcam in your car concerns money. Fitting your car with a dash cam can reduce your insurance premiums, depending on your insurance provider.

For example, renowned dashcam brand Nextbase has partnered with a number of insurance companies, offering chunky discounts on insurance premiums to Nextbase dashcam owners. It is recommended that you check with your insurer to see if you can be benefitted in any way after a dashcam is installed.

### What are important features in a dual dashcam? {#h-important-features-in-a-front-rear-dash-cam-bundle}

There are several important dashcam features that you don't really have to be concerned about because they come as standard on every dashcam you'll find. They are G-sensor, loop recording feature, and parking monitor. :a[High-tech dashcams]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-high-tech-dash-cams/' } come with a lot more tech, and this is purely dependent on what you desire in your setup.

For the front camera, you'll want a minimum of Full-HD 1080p recording quality with a reasonable frame rate of at least 30fps. The angle width of the lens is important, too, because it determines how much the road the camera can capture. You'll want at least 140 degrees.

For the rear camera, things vary a bit. Some rear cameras are internally mounted, and some externally. One example is the Road Angel Halo View mirror dash cam. The front camera clips onto your rear-view mirror, whereas the rear camera is mounted outside.

Naturally, if you get one that is external, it needs to be robust and properly waterproof - you only need to look for an IP rating to confirm its waterproof-ness. Rear cameras don't usually have the same quality of video as the front cameras, but 720p should be an absolute minimum.

From there, you can have as many or as few additional features as you wish. :a[Wi-Fi in a dashcam]{href='https://products.carmagazine.co.uk/car-accessories/technology/wifi-dash-cams/' } and GPS are both useful, the former allowing you to quickly access files on your phone, the latter giving more precise information on your location and speed.

The best dual dashcams 2025

If you’re worried about your car getting stolen then your immediate thought might turn to :a[car tracking devices]{href='https://products.carmagazine.co.uk/car-accessories/technology/car-trackers-guide/' }, but looking for the perfect gadget for your needs may become difficult as there are a two main types of tracking devices. The first is a wired tracking device which is connected to your vehicle’s wiring, but if you’re wanting something that’s a little more flexible and easier to install then you’ll be wanting a magnetic car tracker.

Some trackers are visible when fitted to your vehicle which isn’t ideal, especially if a thief catches sight of it, they can remove it and discard it. Magnetic trackers are easy to install and can remain discreet to ensure they continue to work when they’re needed the most.

Magnetic trackers can be fitted to your vehicle, or bicycle, by attaching them to any metal surface. This is ideal if you have more than one vehicle and would like to track both – individually of course – then a magnetic tracker can offer an elegant and flexible solution, and you’ll avoid having to buy several expensive trackers. Trackers are also useful for worried parents, as some trackers will relay speed information and driving style, so they’re great for keeping tabs on a new driver until you’re assured.

If security is important to you then you can also consider proactive methods in securing your car, by investing in a :a[steering wheel lock]{href='https://products.carmagazine.co.uk/commuters/security/best-steering-wheel-locks/' }. We would also recommend a :a[dashcam]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-dash-cams/' } which could not only be useful in case of an accident but can also record suspicious activity near your vehicle. If you want to protect your vehicle from keyless relay theft, have a look at our guide on the :a[best faraday pouches.]{href='https://products.carmagazine.co.uk/car-accessories/technology/rfid-key-pouches/' } All these measures could be effective in deterring crooks.

## The best magnetic car trackers 2024 at a glance

Magnetic trackers might sound wonderful – why would anyone ever decide against buying one? Well, there is some maintenance involved when using a magnetic tracker; because the tracker isn’t wired into the car it will run off its own battery, which would need charging regularly. You don’t want the battery to die right when you need it. Despite this, there are loads of magnetic car trackers available, and we’ve gathered the best.

## FAQs and things to consider with magnetic trackers {#h-why-use-a-magnetic-tracker}

### Why should I use a magnetic tracker over a wired one?

Magnetic trackers offer greater levels of ease when installing and operating over wired trackers. Some are as simple as plug and play while others require set-up or registration. Another advantage of a magnetic tracker is the ability to remove the tracker easily and place it on another vehicle. This is ideal if you have more than one vehicle but don’t want to buy several trackers. The versatility that is offered by a magnetic tracker is very useful.

### How long do magnetic trackers last on a charge?

That depends on the one you go for and how you use it. On standby mode most magnetic trackers should like between 90 to 180 days, but if you’re using the device to track for up to an hour a day then expect that same battery to last you between 40 to 90 days. Look for one with a higher battery capacity – like 20Ah (20,000mAh) – but 10Ah (10,000mAh) is satisfactory.

Since all magnetic trackers require charging it is important to keep an eye on the battery life which can usually be done using the manufacturers’ app.

Provided you look after them properly and place them in a hidden area of your vehicle, where thieves couldn't possibly find them, then absolutely. Having a car tracker on the go could be the difference between locating your vehicle or losing it forever due to thieves. It's a good idea to keep it cleverly hidden, though, as thieves will do their utmost to locate and disable any trackers installed - usually the manufacturer-installed ones. If you want to keep an eye on your car whilst it's parked outside your home, :a[an outdoor security camera]{href='https://products.carmagazine.co.uk/car-accessories/technology/best-outdoor-security-cameras/' } can be a great way of monitoring your vehicle if you have to be away.

_**_**Naveed Hussain is a commercial content writer at Bauer Media writing for Parkers and CAR. He enjoys anything with four wheels, and is always planning his next road trip.**_**_

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The best magnetic car trackers 2025

Even the very best car batteries are almost always overlooked - that is until you start having problems with them. When the battery goes flat, you won't be able to move your car, and modern engines now put even more stress on batteries than ever before. Features like :a[stop-start technology]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/the-best-stop-start-car-batteries/' } and ever-increasing computer-controlled ECU systems require a very different type of battery to that which was common a few years ago. Even if you have a classic or hobby car which doesn't demand too much power, a battery can still go flat if not used over longer periods, but you can avoid this by using something like a :a[solar trickle charger]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-solar-battery-chargers/' } to keep things topped up.

Not all batteries are the same, though; you wouldn't fit the battery from a Volkswagen Up into a Lamborghini Aventador, for example, and expect it to work. You need to work out which battery your car needs, then select one of the best car battery options on the market.

To find out which car battery is right for you, go to your owner's manual. That's where you will be able to find the battery's group size - a good place to start when deliberating over which to get. If you no longer have access to the manual, one of the easiest and quickest ways of finding the correct battery is to visit the :a[Amazon Garage]{href='https://www.amazon.com/gp/your-garage/?tag=qcararticle54-21' target='_blank' rel='noreferrer noopener nofollow'}. Once there, just enter your vehicle details, and you'll be automatically directed to the correct parts and spares for your vehicle.

## The best car batteries 2025 at a glance:

To help you make your decision, we've collected a few of our favourites and pointed out the pros and cons of each option. And if you're ever in the market for a device that will provide some power into your battery in the event of an emergency, we've :a[tested some jump starters]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-jump-starters/' } and explain all you need to know about them.

## The best car batteries {#h-the-best-car-batteries}

### How do I know when my battery needs to be changed?

There are a few telltale signs that your battery needs replacing. If your car is bearing some of the following symptoms, it might be worth checking it out.

**Engine** \- if your engine performance isn't quite up to scratch, there may be an issue with your battery. If you turn the key to no ignition at all - it takes the battery to ignite your fuel/air mix - your battery might be completely dead. This could be solved using a :a[portable jump starter]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/best-jump-starters/' }, jump leads or a charge-up at home. However, if the battery is just slow or struggling to recharge, it's time for a new one.

**Electrical** **components** \- as well as the engine, many other components rely on the battery to function properly, including the dashboard display. If your dashboard lights are beginning to dim or flicker - or perhaps your satnav colour screen is beginning to lack in performance, this may well be a battery related issue.

**Age** \- like the rest of the car, a battery also has a finite service life. Most batteries are able to function properly for roughly three years. Some can live far longer than this, but if you've been running yours for over five - even if it still works a treat - it may well be time to start considering a new one.

If your battery is going flat and you are having to use a :a[battery charger]{href='https://products.carmagazine.co.uk/car-maintenance/car-care/car-battery-chargers/' } to boost it every couple of days, is struggling to turn over, or there is a persistent warning light on your dashboard, it's probably a good idea to invest in a new car battery.

### How do I find the right battery for my car?

The quickest and easiest way of finding the right battery for your vehicle is to use a search filter. :a[Amazon Garage]{href='https://www.amazon.co.uk/your-garage/?tag=qcararticle54-21' target='_blank' rel='noreferrer noopener'} is a great example, but plenty of other retailers have them as well to help you find your next service part that's compatible for your make, model and engine of your car.

The simple answer is yes. When you buy a new car battery, they're always ready to be put straight in and fire a car up. This means therefore that when you buy one in a store or order online, you don't have to charge it up manually before using it, which is very handy if you need to get your vehicle moving quickly.

### Do car batteries recharge themselves?

In principle, yes. Car batteries are the heart of any combustion vehicle, yet they always need a supply of power in order to keep them topped up. This is achieved by the engine providing power to the **alternator**. In turn, the alternator then provides power to be sent back to the battery.

If the alternator fails on a car, no power is being sent to the battery which will eventually cause the vehicle to lose power and cut out. The key clue to such failures is a worn auxiliary belt which is in danger of snapping. The belt is what connects the engine to the alternator to ensure the supply of power is there.

With that said however, car batteries will wear out after a while. So, if you suspect some electrical woes in your vehicle, or if it easily goes flat, one of the causes is a battery that needs replacing.

Some are lead acid based, but there are many types of car batteries out there. These include Absorbent Glass Mat (AGM), Starting Light and Ignition (SLI) batteries, and more. However, the vast majority out there are lead acid batteries and that's what you're most likely to come across under a car's bonnet.

### Are car batteries covered under warranty?

There's no right or wrong answer to this. Warranties come in all sorts of different terms and agreements, so if your vehicle has a warranty attached to it, it's worth checking over your policy and/or your vehicle handbook.

With that said, when purchasing a car battery, they'll sometimes have their own warranties included. So, it's worth looking to see what the return and/or exchange policy is, should you have an issue with it later on.

It is possible to recycle car batteries, but it's imperative that you dispose of it correctly. The easiest method is to take it to your local recycling centre where a battery section will be labelled. You can also take it to an automotive product store as they use approved waste disposal companies which can deal with old car batteries, though its worth checking if your local one can do so.

Recycling these batteries helps conserve materials such as lithium, aluminium and copper which are useful for many other industries.

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The best car batteries 2025

When the temperature falls, most people will go searching for their grippy shoes to better tackle the ice, snow and water that winter throws at us, but having the best winter tyres can be almost as important for keen drivers. When the frost starts settling it can be tempting to change to a set of winter tyres. Question is, do you really need a set and if so, which are the best?

Thankfully our sister magazine :a[Auto Zeitung]{href='https://www.autozeitung.de/' target='_blank' rel='noopener noreferrer'} in Germany has done thorough testing. It bought the latest crop of winter tyres anonymously from independent suppliers to see what is the best winter tyre you can buy in 2025.

## The best winter tyres 2025 at a glance

## Winter tyres: what we’re looking for {#h-winter-tyres-what-we-re-looking-for}

The official labels categorise tyres on efficiency, wet grip for braking and rolling noise - and classify each property with letters. A range of parameters were tested including deceleration, traction, steering precision and driving stability on various surfaces and under the same parallel conditions. We also rated comfort and resistance to aquaplaning (when the tyre floats on standing water, losing grip).

Designing a winter tyre that can excel in every discipline is difficult. Tyre makers juggle compound, tread design and carcass construction to find the elusive sweet spot where the rubber can cut through ice and slush, find grip in all conditions - whether slippery or dry - and serve up ride comfort, peace, and quiet for drivers. Oh, and tyres must also last a long time and not disintegrate when the temperature climbs. It’s a tough gig.

Auto Zeitung always runs the tyre test with incredibly stringent rules to ensure reliable results:

• All tyres were purchased from independent retailers.  
• Tests are independent with no manufacturer help. Each tyre is examined using reproducible driving manoeuvres at the limit on snow, wet and dry surfaces - with and without ESP stability control engaged. This is the only way we can say whether a tyre offers security during a spontaneous evasive manoeuvre. We also subjectively evaluate the comfort properties  
• Each tyre has its rolling resistance tested on two different test stands.

All of the tyres were tested on Snowy tracks in March at the Sottozero Center in northern Sweden, and during wet and dry conditions at the Contidrom, Continental's test track north of Hanover, at the end of February. The car used for testing was a Volkswagen Passat Variant 2.0 TDI SCR. The 215/55 R17 tyre size was chosen as it is a popular tyre size which is often used on cars like the Nissan Juke, MG ZS, and Ford Puma.

These are often conflicting goals; if you improve a tyre’s efficiency, for example, grip in wet conditions decreases - and vice versa. If you reduce the profile depth for more steering precision, the tyre will float faster. If you design more slats - or sipes - in the profile to improve grip on snow, dry grip becomes worse. In short: all-rounders are the exception.

## The best winter tyres 2025 {#h-the-best-winter-tyres-2023}

## Frequently asked questions about winter tyres

### How do I find the correct tyres for my car? {#h-find-the-correct-tyres-for-your-car-online}

Want to make sure that these winter tyres will fit your car? Amazon offers a feature called :a[Amazon Garage]{href='https://www.amazon.co.uk/your-garage/?tag=qcararticle215-21' target='_blank' rel='noreferrer noopener nofollow'} which allows you to add your car and filter parts that are designed to fit. There is also a service called Amazon Confirmed Fit which will ensure that any tyre you look at fits your car. :a[Kwikfit]{href='https://www.kwik-fit.com/' target='_blank' rel='noreferrer noopener nofollow'} and :a[mytyres.co.uk]{href='https://www.mytyres.co.uk/' target='_blank' rel='noreferrer noopener nofollow'} offer similar services.

### What are winter tyres or cold weather tyres? {#h-what-are-winter-tyres-or-cold-weather-tyres}

Firstly: ‘winter tyres’ or 'snow tyres' as we’re accustomed to calling them, is actually a misleading title. These aren’t massive chunky mud-plugging boots with knobbly, noisy treadblocks and spiked studs. They're cold-weather tyres, designed to work in lower temperatures, on wet and dry roads, as well as giving better performance on snow and ice – which, given the inconsistent gritting on our nation’s road network, is just as well. We need a do-it-all tyre.

### How do winter tyres work? {#h-how-do-winter-tyres-work}

Winter/cold-weather tyres contain more natural rubber than regular tyres, and are constructed from a softer compound. This allows them to stay supple as temperatures drop below 7 degrees C in conditions where a normal tyre becomes hard and less keyed-in to the asphalt. The result? Higher grip levels on the road, even when the tarmac isn't covered in white.

It’s not just all chemistry, though: look at a winter tyre up close, and you'll see the tread is different to a more conventional tyre. The contact patch of a winter tyre is more rugged: it's covered in thousands of ‘sipes’ – tiny channels or grooves cut into the rubber which help warm them up – while also displacing water and slush at a faster rate. Winter tyres can have up to 10 times more ‘sipes' than your average tyres.

On snow, these little crevices work together with a larger tread. If you were to use a regular tyre, its channels would quickly become clogged with compacted snow – making for less-than-confident handling. On the downside, wobbly treadblocks mean cold-weather tyred cars are less responsive in milder conditions.

### Should I buy winter tyres? {#h-should-i-buy-winter-tyres}

In the snow, winter tyres are an obvious option. They make for safer, more confident driving, and they improve grip significantly – but they’re also a gamble. Sure, we often have a cold snap in a typical British winter – but you can't bank on it. It takes just one mild winter (like 2020's) for you to question the extra expense of buying an additional set of rubber.

Cars can become notoriously unruly on winter boots, with vehicles closer to the performance end of things – like a new Aston Martin Vanquish, for example – spinning the wheels in fourth.

In snow and cold weather, a seasonal rubber compound, chunkier tread and sipes work well – but they don't behave as they should if it's really mild and above the optimum operating range. We've driven numerous cars shod with winter tyres that have a chunkier ride quality, woollier steering and slippier handling in certain conditions.

It’s a complicated argument and one that comes down to your budget, and the predicted weather for the next few months. In colder countries, getting winter tyres is an easy decision, but in our more temperate British climate, we can’t even rely on a cold snap.

That said, if you can afford a set of winter tyres, they'll do far more to keep you mobile than picking an all-wheel drive car. If you want added peace of mind, have somewhere to store an extra set of rims (some garages will do this for you, at a price...) and need to keep mobile this winter, just do it.

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