when I was a young sprog in the late 1960's one of my weekly tasks was to go to POL point and draw some petrol and oil plus some cotton waste....mix the oil with the petrol until you get 2 stroke...soak the cotton waste in same and apply only to the exterior of the vehicle...petrol vaporises and leaves a nice shiny surface on the vehicle...prior to MT Officers inspection.....glad I only had a Landrover FFR....cheers malcolm PS still doing the same today!