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- Sep 28, 2002
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Quote:
Is the average API SM oil (especially a conventional one) really inadequate? His cam wear suggests it is. Even if an SM/GF-4 oil "should" be adequate this application certainly differs from a modern engine.
SM would probably be adequate if the engine had normal spring rates (under 200lbf).
Again, the cost of oil and speculative fear factor on the cat is chump change compared to the investment in the engine to date.
Use Dominator 10w-30 and worry about the sun running out of hydrogen.
Is the average API SM oil (especially a conventional one) really inadequate? His cam wear suggests it is. Even if an SM/GF-4 oil "should" be adequate this application certainly differs from a modern engine.
SM would probably be adequate if the engine had normal spring rates (under 200lbf).
Again, the cost of oil and speculative fear factor on the cat is chump change compared to the investment in the engine to date.
Use Dominator 10w-30 and worry about the sun running out of hydrogen.