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Adding Zinc to Oil? Adding Zinc to Oil?
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Old 05-07-2012, 10:03 AM
donnieR32's Avatar
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Cobra Make, Engine: Contemporary 428FE
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Originally Posted by madmaxx View Post
Viscosity would be whatever weight gives you an oil pressure reading of 55 psig to 60 psig at 6Krpms when the oil is at 212F. Anything more is not beneficial and may even be detrimental.

$12.00 for break-in additive, $24.99 for 5 quarts Mobil 1 synthetic 10W40 high mileage (has extra zinc and phosporous) than standard.
Synthetic??? My engine has been running on conventional. At least that's what the previous owner advised me to use. I'm pretty sure if I used synthetic it would end up all over my garage floor.
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