It's highly unlikely Pencoil had anything to do with Pennzoil. Pencoil was the trademark of Pennsylvania Petroleum Company of Kansas City, MO. The Pencoil brand name dates to around 1926 and was still in use at least until 1935.
The Pennzoil Company was from Oil City,PA and was primarily a lubricants refiner and marketer prior to getting into the retail gasoline business when they opened their first gas station in 1921.
South Penn, which had been part of the Standard Oil Trust bought controlling interest in The Pennzoil Company in 1925. The gas stations were renamed Pennzip in 36 but were still part of the The Pennzoil Company.
Pennsylvania grade crude was thought to be the highest quality crude so several companies capitalized by using "Penn" in their name, or products name.
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Today's Featured Article - The Collection of a Lifetime - by Sherry Schaefer. The larest gathering of orphan tractors ever assembled by one collector will be auctioned off on May 15 in Rock Island, IL. Ed Spiess was a well known tractor buff who spent most of his time dreaming of rare and unknown tractors. His background as an agricultural engineer sparked his interest in the unique attributes of the models built from 1939-1959.
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