Quote:
Originally Posted by Ultramaroon
Seems legit. As for my own machine, I've run the mobile-1 0w-20 exclusively and adjust my oil cooler flow to maintain ~75 PSI max pressure. It coincidentally works out to ~180 degrees F, which is in line with the service manual.
I think engine longevity is more tied to build precision/quality than choice of lubricant. If the bearings are going to scuff hard, might as well get the rebuild over with sooner than later.
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That brings us to how much PSI a given oil bearing can support. They aren't all equal, and why I've only ever used Mobil1 0w-40 in this engine.