A friend of mine is a painting contractor and he wants to know if I can figure out what to do with 500 gallons of mineral spirits. Any ideas??

 

if you filter it really good it should burn in a diesel... maybe mix it with diesel fuel. Someone else might know better than me though.

 

Paint thinner or otherwise known as mineral spirits is basically gasoline, so it might run fine in a gasoline engine. Or, you could thicken it with vegetable oil or WMO at about 20% mineral spirits to 80% vegetable oil.