Quote:
Originally Posted by Tom Vaught
My uncles dealership used to use Pennsylvania oil called Wolfshead oil in the 1970s and many years before that.
He told me stay away from the offshore, Shell, etc) type gulf grade oils.
At one time it was a true Pennsylvania grade oil. See Below.
Then in 2009 Pennzoil was bought by a gulf manufacturer. I stopped using the stuff then.
Info on Wolfshead oil:
Wolf's Head motor oil company manufactures various weights of motor oil, synthetic oil, and other automotive fluids. The company was founded in Pennsylvania as "Pennsylvania Crude" in 1879. Presently, its company headquarters is in Tampa, Florida. The company slogans are "The Finest Of The Fine Since 1879" and "Run With The Wolf". The oil is marketed as "superior performance, but exceptional value" and has been well respected in the muscle car community. The trademark was originally registered to Pennzoil (now owned by Shell) until at least 2009.[1] The trademark is currently registered to Amalie Oil Company.
Pennzoil is just another Gulf Oil sold by Shell for at least 13 years now.
Tom V.
Glad I bought my 100 quarts when I did.
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Before Pennzoil was bought by Shell (which makes the same Rotella oil you've stockpiled, from gulf crude), Wolf's Head was owned by Pennzoil. I was in the Pennzoil refinery warehouse in Rouseville PA, (early 90s) and Wolf's Head was there by the thousands of cases. Since my father used to use Wolf's Head I asked about it, Pennzoil had acquired it years before. It was the same oil that was in the yellow bottles, same formulation. Pennzoil acquired Wolf's Head in 1963.
Looking around in the warehouse there were many private label brands as well as some national brands. The warehouse guy says it's all the same oil as comes in the yellow Pennzoil bottles, just a different label on the bottles. Just as NAPA used their own bottles, it was Ashland oil, otherwise known as Valvoline. That may have changed, but in the early 70s NAPA was all Valvoline oil, in their bottles.
Wolf's Head used to be an emerald green color, which usually indicates a high zinc concentrate oil (Brad Penn is green in color also). Any Wolf's Head oil made in the last 50 years is amber colored, not even close to the original formulation green colored Wolf's Head oil. I was 10 years old when Pennzoil bought out Wolf's Head, but I still remember my father changing oil, and seeing that green oil from the cans.
I really don't want to screw up the OPs thread talking about oils, but by the same token want to keep facts straight.