Quote:
Originally Posted by Fast6.3
As far as weight is concerned you are correct but mobil 1 sucks
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I agree...I'd never put that horse piss in my engine. Castrol Syntec is perfectly fine for any heads/cam combo on a stock bottom end on the street.
Quote:
Originally Posted by litle88
They didn't change Mike, but the spring pressures have and that needs attention. Especially for the cam and lifters, and the rocker and valve tips respectively.
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The rocker and valve tip interface...that's a cooling issue, not a lubrication issue (that's actually what the oil is for in your bearings too, removing heat from the bearings so they can continue to do their jobs)...hydraulic lifters and some more spring pressure...perfectly fine with the same weight oil that GM told you to use.