Off road fuel went from 15.9 cent per gallon in October of 1974 to a $1.39.9 by 1980. It went up about a $1 per gallon under carter.
In '68, we were sellin' Road diesel for 17.9. In '70 I think we were up to 38.9. This was Colo., so it must vary per state. Cahatah is the asshole that showed the states they could tax the piss out of it for the simple reason of, "what are they gonna do, quite buyin' it?". Every congress since has raised the tax!
****in' bastard!!!! It was the start of federally taxed petroleum. They've never looked back! They see it as a cash cow now! Same thing happened to cigs in the 90's!!!