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zddp - our cars have flat tappet or roller cams? 850 1995

Kind of asleep at the wheel I think ZDDP has been severely cut from newer oils even the diesel oils. Newer oils must have less than 800ppm to get the american petroleum institute current S ratings. Gee i have some old CANS of oil on display in my garage, maybe SF or SC. Maybe that's the best oil for my volvo now.






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New zddp - our cars have flat tappet or roller cams? [850][1995]
posted by  Three5bangers  on Sat Oct 1 08:34 CST 2022 >


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