quote:Yup, it is. When Conoco and Pennzoil started their Excel Paralubes joint venture for producing base oils, they licensed Chevron's IsoSyn system. Pennzoil has even bought base oil from Chevron when the capacity of the Excel refinery couldn't meet their demands. (Of course, all this will change now that Shell owns Pennzoil. Part of that buyout dictates that Pennzoil divest itself of its interest in Excel.)
Originally posted by Ray H: Hapuna Beach, Chevron's techno-babble to indicate their product is hydrocracked is, "Iso-Syn". You'll see it on the bottle labeling. I believe the same holds true for Pennsy's "Pure-Base" nomenclature.
quote:Does this mean Pennzoil will go downhill? Hard to keep up with all of these mergers... what is a good oil today could be crap in one year, and vise-versa.
(Of course, all this will change now that Shell owns Pennzoil. Part of that buyout dictates that Pennzoil divest itself of its interest in Excel.)
quote:I couldn't agree with you more on the quality of engine performance with Chevron in the Saturn. Even after changing the oil with Chevron, I don't notice any "improvement" over the old oil. It always seems to keep the engine running smooth. Probably the best deal there is for oil IMHO.
Originally posted by Mystic: The first time I tried Chevron motor oil in my Saturn, it was strange-but I could actually feel a difference. And the good feeling seemed to last throughout the oil change-not just at the start. I know that is not scientific, but that is how it felt.