[SkauneJohan]

I have also heard of people using acetone as a fuel addative to increase mileage, since acetone is very agressive to many plastics and rubber I would never do that

also heard of people using diesel added to engine oil to flush but since we dont have real diesel here that is a no go

coca cola poured into sparkplug holes(gas engine) frozen rusty old engines to make them free up

using brake fluid to remove tint from turn signals(very nice if you get it on the car paint NOT)

some remedies are good but others not