The best car shampoos in 2022

Car shampoo has evolved over the years so now some incorporate synthetic technology. This is the ultimate guide to car shampoo from the Parkers experts.

Parkers team testing car shampoo on a Volvo XC40

by Chris Williams |

Washing your car at home will save you money – and is the best way to ensure a flawless finish. Automatic car washes have hard bristles that can scratch paintwork, while hand car wash services may use abrasive chemicals for a quicker clean. There are a huge number of car washing products available, but all you really need for a good clean are a wash mitt, two buckets and a quality car shampoo.

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Why use car shampoo?

You need two liquids to clean your car: water and shampoo. A good shampoo does more than simply remove grit and grime; it also protects paintwork against degradation and corrosion – making your car last longer and enhancing its value. Put the work in with a wash mitt and you’ll reap the rewards at resale time.

Simply washing your car with water won’t be sufficient to remove tough blemishes such as dead bugs and bird mess. Equally, you should never use washing up liquid, which is abrasive and can strip the paint of wax. Car shampoo creates a rich foam that loosens stubborn stains and lubricates the paint surface, reducing swirl marks and helping dirt rinse easily away. It will make your job easier and leave the car cleaner: a win-win.

Which car shampoo is best for you?

Choosing the right car shampoo can be confusing. Thankfully, we’ve hand-picked the best products to suit different needs and budgets – based on real-world testing and feedback. All will give your car a showroom-fresh finish without the need for too much elbow grease.

We’ve deliberately steered clear of high-end products used by car detailing experts, focusing instead on excellent shampoos at affordable prices. From wash-and-wax, to snow foam, to hard-water shampoo – we’ve aimed to cover all bases.

Read on for our pick of the best car shampoos available on Amazon – including Gold, Silver and Bronze award winners – plus a washing guide at the end of the article.

The best car shampoos in detail:

Autoglym Bodywork Shampoo Conditioner

Gold Award Winner (Editor's Pick)
Autoglym Bodywork Shampoo Conditioner
Amazon

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Parkers recommends this for: general and frequent cleaning.

A hair stylist would probably advise against a combined shampoo and conditioner. But when it comes to car washing, this two-in-one product offers a powerful clean with added paint protection.

Autoglym is one of the oldest and most respected names in car care, and even boasts a royal warrant. Its bodywork shampoo and conditioner is pH-neutral and water-repellant, which reduces drying time. And the protective film it leaves after use will make your next wash even easier. It's also highly concentrated (one cap per wash) and good value for money, particularly in the largest 2.5-litre bottle size (also available in 500ml and 1-litre volumes).

Meguiar's Gold Class Car Wash Shampoo & Conditioner

Silver Award Winner
Meguiar's Gold Class Car Wash Shampoo & Conditioner
Amazon

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Parkers recommends this for: general and frequent cleaning.

Meguiar's is another well-respected brand with a long history in car cleaning. Gold Class Shampoo and Conditioner lives up to its name, with a rich, foaming action that helps your wash mitt glide effortlessly, plus a glossy finish to leave your car gleaming.

It helps enhance the look of paint that has already been waxed, cleaning the surface without removing existing protection. A concentrated formula provides plenty of washes per bottle (two to four capfuls per wash), although Autoglym's Shampoo Conditioner comes in a bigger bottle. Consider Meguiar's NXT Generation shampoo below if you live in a hard water area.

Turtle Wax M.A.X Power Car Wash Shampoo

Bronze Award Winner
Turtle Wax M.A.X Power Car Wash Shampoo
Amazon

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Parkers recommends this for: deep cleans and for stubborn grime.

'MAX Power' might bring back memories of a now-defunct car tuning magazine. Here, it stands for Moderate, Aggressive and Xtreme – the three levels of wash offered by this Turtle Wax shampoo, depending on how much you dilute it.

'Moderate' uses 100ml of concentrate per four-litre bucket of water for a pH-neutral formula to rinse away everyday road grime. 'Aggressive' doubles the dose to 200ml to tackle dead bugs and deeper dirt. And 'Xtreme' (300ml per four litres) increases the pH further for tree sap, brake dust on alloy wheels and removing car wax. For year-round cleaning, this does the job. We like the versatility of this shampoo - it works with both hard and soft water - but you do chew it.

Bilt Hamber Auto Wash Car Shampoo

Best value
Bilt Hamber Auto Wash Car Shampoo
Amazon

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Parkers recommends this for: those who don't want a large car shampoo container on the shelf.

On first impressions, you wouldn't think this car shampoo from Bilt Hamber is great value. But all you need per bucket is 5ml. And like the Bilt Hamber snow foam we tested, this stuff works. There's no fragrance here, no fuss, just value and effectiveness.

Turtle Wax Hybrid Solutions Ceramic Wash & Wax Car Shampoo

Best Wash and Wax
Turtle Wax Hybrid Solutions Ceramic Wash & Wax Car Shampoo
Amazon

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Parkers recommends this for: those who know they won't apply a separate car wax or sealant.

Incorporating SiO2 ceramic polymers for paint protection, this shampoo uses the latest in synthetic car care technology. Add a couple of capfuls to half a bucket of water and apply the shampoo to a rinsed car as you would normally. Rinse it off once you’re done and dry with a microfibre towel. In the same way that some shampoos have incorporated wax for added protection, so does this. To fully understand ceramic coating technology, check out our guide.

Autoglym Polar Wash

Best car shampoo for use with a pressure washer
Autoglym Polar Wash
Amazon

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Parkers recommends this for: a fast, labour-free car shampoo experience.

Snow foam is a relatively new product in the world of car cleaning. The thick blanket of white foam clings to your car's exterior, increasing contact time between the cleaning agents and the paintwork. This helps it break down grime, so it can be easily rinsed away.

It's very effective, but is ideally used as a pre-wash followed by car shampoo. Also, you will need a pressure washer with a snow foam lance to apply it. If you are looking for a snow foam, we recommend Polar Wash from Autoglym. It's easy to use and removes the majority of grime in one go.

Meguiar's NXT Generation Car Wash

Best car shampoo for hard water
Meguiar's NXT Generation Car Wash
Amazon

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Parkers recommends this for: areas with hard water.

Hard water contains a large concentration of dissolved minerals, particularly calcium and magnesium. It isn't ideal for car washing as it discourages shampoo from foaming, then leaves streaky deposits on glass and paintwork when it dries.

If you live in a hard water area, a car shampoo containing water softeners, such as Meguiar's NXT Generation, will combat these effects. We've sampled this product and liked the ease of application and sleek shine it produced. A thick, gel-like consistency makes it harder to measure out than some, however.

How to use car shampoos

As you’ve probably gathered by now, different types of car shampoo suit different needs. Some offer a straightforward clean, some include a level of wax protection, and others are designed to be applied as snow foam. We’ve included a mix of all in the products above.

A pure shampoo, such as the Sonax Gloss Shampoo, is designed simply to cleanse the car’s surface of dirt and other pollutants. In some ways, this is the back-to-basics option – and it’s certainly cheaper as a standalone product. However, a lot of car cleaning obsessives also use a pure shampoo, then apply wax or polish separately.

A wax-based shampoo, such as Zip Wax Car Wash & Wax from Turtle Wax, contains detergents and wax (usually carnauba) for post-wash protection. This will supplement any existing wax on your car’s paintwork. The downside is that wash-and-wax shampoos are slightly compromised in terms of ultimate cleaning ability.

You will also find some car shampoos designed for heavy-duty washing (e.g. winter use) and others that apply as snow foam. The latter treatment requires a pressure washer and is not a substitute for a proper wash – think of it as a pre-wash to remove the bulk of road grime.

Whether or not you use snow foam, it’s a good idea to rinse your car before washing it. This will help remove dirt particles before you make contact, reducing the risk of light scratches and swirl marks in the paint.

Talking of doubling-up, you also need two buckets: one filled with clear water and the other with diluted car shampoo. The idea is that you dip your wash mitt into the soapy water, then rinse it in the plain water after each application. This should prevent dirt accumulating in the shampoo bucket, which can damage the paintwork (not to mention hampering your efforts to clean the car).

Even if you live in a soft water area, you should still dry the car afterwards. Do so by starting at the top and working downwards. Use a synthetic microfibre towel, rather than a traditional chamois leather, as this will absorb the water more effectively, without leaving any residue. Never use a rubber blade to scrape water off the paintwork – you could be scraping dirt, too.

Good luck and enjoy washing your car. It can be a rewarding process if done right.

Summary checklist when choosing a car shampoo

What’s your budget? Prices vary widely.

Would you prefer pure shampoo or a wash-and-wax?

Do you want a snow foam product?

Is the shampoo for general washing or heavy-duty use?

Do you need a shampoo with softeners for hard water?

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