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Power Strokes
6.4 Aftermarket
Snails Pace Build / Rebuild
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[QUOTE="buck russell, post: 1046383, member: 10792"] Basically there are two schools of thought. Synthetic and conventional. Around 25k miles I switched to conventional oil. It's been said that synthetic breaks down under the extreme heat of the 6.4. But more importantly, it thins out. Thus, the rockers aren't coated properly and wear prematurely. Henceforth why I will only be running conventional oil from this point forward. [/QUOTE]
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