Juggling The Truth About Today's Oil - Engine Oil Tech
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As we learned in "The Slippery Truth About Oil" in the June '06 issue of HPP, the American Petroleum Institute (API) sets the oil category standards, and its latest SM/GF-4 and CJ-4 certifications include lesser amounts of ZDDP, which many feel is a contributing factor to the high number of flat-tappet camshaft failures today. Additional information about the rating system can be found at www.api.org. View Related Article
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