Dan M asked: I am trying to clean a ceiling for a friend. My friend uses fuel oil to heat the house to save money. Unfortunately, fuel oil leaves a residue on the ceilings and walls that is very difficult to clean off. What cleanser works the best to wash it off? I am willing to use gasoline to clean it but he thinks that is too extreme. I have tried using soaps, rubbing alcohol, and bleach with little success.
clean fuel