I don't know if the diesel oil is a great idea. I know it has more zinc but are the formulations for a diesel really OK for a gasoline engine? Why not use a gasoline oil in diesel engines then? I really don't know but IMO it's a better idea to buy a zinc additive for your favorite zinc deprived recommended oil. Not that I think diesel oil will have short term repercussions. Or will it? Don't know ...... why risk ........ let us know in 5 years or so.

Les