ZDDP Levels - A List for Various Oils
Recent posts soliciting oil recommendations and related comments about zinc and phosphorous levels in various oils peaked my curiosity so I put together the attached table showing the Zn and P levels for a few popular oils. I've not attempted to provide a comprehensive list and your oil may not be on the list. If you have more interest I'd suggest consulting the MSDS or Product Technical Sheet for any oil you're considering, don't take my word for it. I just wanted to provide a starting point from which to begin your research or if you're using an oil with less ZDDP than you want it may be time to reconsider your choice. A level of ZDDP of about 1200 ppm seems to be the recommended minimum and levels that are too high may create certain negative unintended consequences.
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