Originally posted by Joe H:
XXL, our cam lobes went bad due to pour lubrication, not a flow problem. I suspect the cam or lifter was not 100% and the lack of Zinc caused the wear.
Probably nearing 'dead horse' point, but it seems odd to blame the oil... the one thing that is consistent across ALL lobes (ASSuming it's actually getting there) and not the "not 100%" lobe that failed. Setting aside "engine experience" for a moment, if I were to present a situation where there was a single constant, and only a portion of seemingly identical parts associated with the constant failed, it would be completely illogical to say that the constant was the culprit.
One day I'm sure I'll regret my choice of oils (whatever API SM-level is on sale) and wish I had used something with more magic in it
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