Re: oil question
This is what Antique engine rebuilding has on their website.
What oil should I use and what about the zinc reduction in modern motor oils?
If engine is clean on the inside it is highly recommended to use a multi-grade motor oil such as 10w30 or 5w30. Yes, we all have learned that the modern motor has greatly reduced zinc anti-wear additive. This anti-wear additive was required when the automotive industry switched from steel cam shafts to cast iron camshafts. The Model "T" "A" and early "V8" Fords had steel camshafts and this problem of premature camshaft lobe wear has not happened. We also have lower valve spring tensions and lower RPM's that prevent this wear from happening. Later V8 fords had a cast iron camshaft, so a different oil or zinc additive should be used.
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