Wolf's Head Oil?
Ever hear of this? How's there synthetic diesel oil? I've not familiar with them. The previous owner was using it.........Cummins 8.3 350hp
Forum Discussion
The oil that goes in the Wolfs Head cans may come from Pennzoil, but it may or may not have the same quality of additive packages. Better if you use a "first tier" oil (Shell, Mobil, Amoco, etc.).
