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
Wolf's Head oil company has been around since the 1880's or a few decades before Pennzoil was started.
The important part is if the oil in the can meets the required specs for your engine.
The important part is if the oil in the can meets the required specs for your engine.
