Has anyone used the Z-max ( see http://www.zmax.com/ ) that is being highly advertised by various car related programs on TV? Does it work?
Perhaps coating the outside of your car with it, will make it glide through the air easier and stop dirt sticking to it
Russ
Probably as well as mixing diarrhea in with your petrol, strained of course, but isn't it always?
A waste of money!