Redex Petrol System Cleaner 250ml

Can Redex cause any damage to my car?

No. Redex has been carefully developed and extensively tested over many years to ensure it provides all the performance benefits you would expect without causing any damage. Our bottles provide you with a controlled dose, so you can add the right amount easily.

What is Adblue® and Why Do I Need It?

Adblue® (also known as diesel exhaust fluid) is a fluid which reduces harmful NOx emission from your car’s exhaust by converting them into nitrogen and steam. Car manufacturers have to meet certain standards regarding emissions, and an EU directive means that from September 2014 Adblue® tanks will be fitted in new diesel cars.

Redex Boot Pack Petrol

How much Redex should I add to my vehicle?

Redex is available in a range of bottle sizes and each is designed to deliver the correct amount to treat 50 litres or one tank of fuel. The Redex “one shot” bottles contain 125ml, which is one “dose” of Redex for a full tank.

Redex Boot Pack Diesel

How often should I use Redex?

Redex can be used as often as you like to keep you engine running well. We recommend using a shot in each tank, but you can also use it whenever you notice your MPG dropping or between fill ups.

Redex Diesel System Cleaner 250ml

Where can I buy Redex?

Redex is sold in stores across the UK including national supermarkets and local specialist retailers. You can find out more on our Where to Buy page.

Redex diesel in use

How do I add Redex to my car?

Simply pour Redex directly into the tank in the same way you add fuel. The bottles have been designed with a long neck which inserts like a fuel pump to make pouring easy.

Redex Lead Replacement Bottle

I have a classic car. Can I use Redex?

Yes, you can use Redex fuel additives in older cars. We’d also recommend you consider using Redex Lead Replacement fuel additive if your car was designed to run on leaded petrol and you now use unleaded fuel.