Before I do that though, I had another test to conduct first. One that @Ekona is particularly interested in and relates to this thread.   To prep for this test I proceeded to wash the whole car; foamed with Car Chem Snow Foam (petrol cap, badges, etc were also APC'd and agitated with a boar's hair brush at the same time as the foam), then washed with Car Chem 1900:1 shampoo. Specifically this one;   It's amazing how long a litre bottle will last when you use just 12ml pe
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