Been visiting the pikey car wash places lately (the ones that used to be petrol stations) to get the daily drive cleaned which is a bargain for what you get done for £5.

Would anybody know what type of product they spray on the alloys and bottom of the doors about 2 minutes prior to the cleaning. It shifts just about every speck of dirt of the lower part of the car with just a quick spray from a manual pump. Would love to know what they use.