Quote:
Originally Posted by 83Mule
Many oils use Moly as the heavy lifter for wear, while others prefer to use P and Z to achieve it. There is no one way to get to a reasonable Add Package. And You can have too much of an ingredient.....P and Z will foul the plug electrode at high levels even though those levels are best for the valvetrain. Just keep in mind that MORE of something isn't an indicator of better, there is a lot at play.
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Having a lot of a chemical causing issues was my thinking as well but I'm no chemist.
