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Re: recommended oil weight
Use rotella or delo diesel oil or you will wipe the cam. The oil for gas engines does not have enough zddp anymore. You get 15/40 in diesel oil which is fine I only use rotella only in everything I drive including my silverado 5.3. Also the diesel oil is detergent so your motor will stay clean. I have pulled down motors with high miles after I have used rotella and they are clean inside.
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