Article in This months Hot Rod Mag- ZDDP Levels

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701
Location
Arizona
June HOT ROD Magazine has a good article on Zinc levels in recent oil formulations and how it has affected Cam/Tappet wear. They suggested that these anti wear adds. wear being reduced and causing much cam wear. They even suggested using a HDEO Rotella in some situations. I wonder if anyone has read the article?
 
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