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: Engine Oil - Dino or Synthetic? Chromer 03-20-2008, 09:34 PM This seems to always be a hot topic, so I thought a very simple poll... Edit: So far, I have 5800 miles on this Delvac 1 ESP and has not used one drop btfarm 03-20-2008, 09:41 PM I've had nothing but good luck with 15W40 Rotella T on the LLY and LBZ. Never have used more than a qt in up to 7500 mile changes. I'm 95% highway. LBZ now at 57k. Changed it last night at 7500. Used about 1 qt. Arkapigdiesel 03-20-2008, 09:49 PM What's the question? Chromer 03-20-2008, 09:50 PM What's the question? Dino or Synthetic busafr 03-20-2008, 10:15 PM rotella t dino! synthetic EVERYWHERE else!!! pa32rt 03-20-2008, 10:32 PM Synthetic everywhere. There is only so much oil in the ground. Plus, if you can change all of the fluids on a gas car (LS-1 Camaro) to syn and gain 10hp at the rear wheels - it can't be bad. It can only be better for a heavy duty truck with huge friction surfaces. | ||