best engine oil out there? any suggestions?
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Dmaxs are maybe the easiest engines on oil, if you do UOAs you can run oil longer on a PSD you just really need to watch oil viscosity cause it can drop very quickly. IMHO not really worth it.
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Rottela T for regular oil and Amsoil with a bypass system for synthetic, cost more up front but intervals are alot longer, I run mine for 25k and test good but I change it anyway, I have a 6.0 and been doing this for last 200k and I have 250k on it with no issues, at times I would put 5k on in 3 or 4 weeks. just put 2k on in 2 days,talk about tired
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I have never ran into any of the issues that people claim with synthetic oil.
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Karls03 (01-13-2012)