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Car Forum / Oldsmobile Cars / August 2004Pennzoil High Mileage in '76 Cutlass?
I went out and bought Pennzoil high Mileage oil to put in my '76 Cutlass Supreme with 253,000 miles on the original 350cid but someone told me that, since Pennzoil uses parafin in their oil, I should not use that unless that's been used in the car all along. The previous owner told me he used Valvoline. How much of a problem might the Pennzoil cause? is it enough of a concern that I should go buy different oil before I change it this week? If that Cutlass has gone 253,000 miles with Valvoline, then keep using the Valvoline. It shouldn't cause any problems. In my opinion, however, these special oils are nothing more than a concoction of the oil companies that will separate extra money from your wallet for no good reason. Unless you have a problem, regular current spec motor oil should be fine. I have 378,000 on my 1989 Ciera with a 2.8L. I started putting Penzoil in it at 200,000. I still use the recommended 5w30 (regular oil not high mileage variant). It does not smoke or use oil and it runs strong. This engine has never been torn down and I drive it every day. I would say if you wanted to use Penzoil then go ahead. The advice to stick with Valvoline is valid as well. "Dance" with the oil that got you there. > I went out and bought Pennzoil high Mileage oil to put in my '76 Cutlass > Supreme with 253,000 miles on the original 350cid but someone told me [quoted text clipped - 4 lines] > How much of a problem might the Pennzoil cause? is it enough of a concern > that I should go buy different oil before I change it this week? Thanks for the advice. I went ahead and put the Pennzoil in and it seems to be running fine. Think I'll stick with Pennzoil (not sure if I'll stay with the High Mileage stuff) from now on since I really don't know much about Valvoline. |
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