whats the best synthetic motor oil
we all here the names.Amsoil,Royal Purple,Rotell,Mobil 1,Schaffers,Valvoline.is there any oil thats better than the other?IWe run Delvac at work and Im not impressed at all.
Richard

Richard
So what doesn't impress you. the fact they don't run amsoil bought from you. I use mobil delvac ,15000 km between and the oil is still clean when I change it out. 130000(215000 km) miles and all is good.
Last edited by snowball; Nov 2, 2008 at 08:56 AM.
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1stgenSWB
1st Generation Dodge Cummins 89-93
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Aug 13, 2015 12:19 AM




Mobil ranks right up there. What problems have you seen?

