Well I have a couple of nephews that want to help me when I put in the yard, add trees, grade our 600ft lane, etc. Anyway, I do not want them to add straight gas to a diesel engine. An ounce prevention is a pound cure (?) Er something like that. Anyway, that's all I want it for. I almost did it with my fathers J.D. His fuel cans were almost identical, and boy did he get a rush when he saw me almost ready to tip that 'ol gasoline right in!!!