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Old 04-06-2021, 09:55 AM   #38
rotorwrench
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Join Date: Jun 2010
Location: San Antonio, Texas
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Default Re: oil with out zink

I don't know why folks bring this old stuff back up. There must be more than a few other threads about this and many more on other forums. Folks can be told by an expert (of which I am not) that the ZDDP was added more for high performance engines with high valve spring pressures and lumpy cam shafts and even then, it was more for break in than for the life of the engine. Folks have a cam problem and the oil seems to be a convenient thing to blame. I've seen engines from the factory with miss drilled lifter bores and worn out cam lobes mostly due to quality control problems at manufacture. Y-blocks had some problems with top end oiling but not all of them. Most of these older engines had pretty tame cams and nothing special about the valve train. Any oil is better than none.

Use what ever you want but just make sure it has oil in it. Remember that racing engines generally fail sooner due to the extreme power usage and not so much about the oil that is utilized.

Last edited by rotorwrench; 04-06-2021 at 07:04 PM.
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