Many companies are marketing zink additives with a lot of them in the 15 to 25 dollar range. The reason I mentioned STP in the above post is that it contains enough zink to increase your oil levels to more than needed for about 3 dollars and can be bought almost anywhere.
STP can be used on bearings as an assy lube but never use it on new rings during assembley as it will slow down or prevent proper break in. We used it on all of our engines bearings and cams for years with fantastic results.
Been there, Done that, Hope to live long enough to do it again.
Big Bill
I.I.# 4698
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