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Power Strokes
6.7 Tech
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[QUOTE="Xxiled, post: 1530787, member: 31510"] You hit on one of the main questions I have and the only reason I'm confused at present, tons of people saying the 5w40 is to thin to protect the journals because of oil shearing........which brings me to the question about additives...like Lucas or...whatever to protect against anything the 5w might cause.... Is it possible for an oil additive to not meet Fords new 6.7 spec, or cause the oil to not meet the spec? [/QUOTE]
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