Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Flattened Comp cam, am I SOL?
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Old 05-09-2012, 08:45 AM
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As a side note here. Uncle Sam mandated that over the road diesel trucks run catalytic converters a few years ago. Hence, all the diesel oils thought to be high in ZDDP are not anymore. I believe this a very serious issue and think that even people who have flat tappet cams that are broken in need to seriously consider a quality ZDDP additive.

John L
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