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i'm surprised so many people on here (and elsewhere) use non-synthetic engine oil in their porsches. my car's previous owner only used synthetic (mobil 1). should i contemplate switching? the car does not leak any oil at all right now, and i'm hesitant to do anything that might change that.
I use the BP, and have even after rebuilding my engine. It is great oil, and while not cheap, it is less than full syn. When you change oil, like I do, every 6 months or less, why waste the money on full syn?
I use Brad Penn 20W-50 (formerly Kendall GT). It's one of the few still available and I have a convenient source. Remember, you'll need a case of 12 for each change and these engines do consume oil, depending on their condition.