Quote:
Originally Posted by grahambehan
Interesting opinion, what specific design parameters of the LT5 make it require high zinc and phosphorus.
graham
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The design issues that come to mind are valve spring pressure (including variable spring load and variable Valve and Lifter inertial load) and all at up to 7,000+ engine RPM.
You have the "Theory".....I have the "Cams"......

Just being on the safe side given all the Expertise and Discussions regarding LT5 Engine Oil on this and other Forums