Gtechniq W2 Multi Purpose Automotive Cleaner 500ml - Removes Stains with Ease, Versatile Use On Any Surface - Breaks Down Bonds Between Dirt and Vehicle, For a Clinically Clean Finish

Best on the market, no question 👌

Works very well

Used it to clean the roof of a second hand Audi A3 Cabriolet. Did a great job and easy to use. Also has many other uses as a 'cleaner'. It might be a bit more expensive than other makes but does its job well.

Cleaned my roof with two applications which removed most of the moss and dirt accumulated over a year and a half. There are still stubborn patches of dirt which I am sure will be removed with another application. Great product and better value for money than another brand I have tried as there is still 3/4’s of the bottle left

I have a Mercedes convertible and my roof has not really been up to scratch for a long time. Went online to buy my usual product and found that Gtechniq had been rated higher!! I bought 0.5 litres and used it "neat".....I could not believe how much "filth" flowed when I rinsed off the Cleaner. My roof is still not perfect, and as I had used the whole lot, I have ordered 5 litres and will use it 50/50 the next time. I would certainly recommend W2 for this purpose and I think it is a great product to have in your home for anything stubborn, even if you do not own a convertible :-)