- Mar 26, 2011
A diesel engine and a flame in a can are not the same thing.A lot of auto repair shops burn used motor oil for heat. The heaters are designed for it so they work well and they have a lot of it doing thousands of oil changes a year. My nephew owns a shop and I take all my old oil to him.
You are free to put fuel in your engine that does not meet ASTM spec. The considered opinion of experts is that it is a bad idea.