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I run 20w50 most of the time I have also used the 0-40W Mobil 1 Synthetic
and it seem to work the best. I think I have the sticking bypass in my oil pump
I seem to run very high when cold and it drops to almost 0 at low rpm and only 25psi at 3000 when I tryed 0-40 it seem have the most psi after warmup I think it might have unstuck the bypass. I have 20-50 normal oil in there now I might try the 0-40 again. to see it it helps. As for gas I have been using the 92 but as late I have went to the cheapest. 87 to see if it would knock (thinking of the supercharger) and I have not had it knock yet.
so my guess is I have been wasting mony and runing with less power.
lower octane will give more power for a giving setting. But if knocks it is too low.
But with the low CR of the v6 it looks like it likes the low octane. or the 20° max advance is good for the cheap stuff. IStill testing.. if runing the 92 I guess the timming could be pushed a lot more?
btw I have the 3.0
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