dino oil vs synthetic mpg
has any one when from dino oil to full synthetic oil & had better m p g & what oil & how much better m p g did you get ? i have 2011 chevy 2500 Duramax pulling 35 ft 5th wheel..
Forum Discussion
Groover wrote:Cummins12V98 wrote:
I run the 15-40 AMZ/OIL Diesel Signature Series in my Cummins. Oil is still in great shape at 15k with FleetGuard filter. This sample was at 45K on the clock.
I have a Cummins in my Freightliner and they are very specific that I am not to use synthetic oil, dino oil only. I even called and had that confirmed but did not get a reason.
I would love to see that in black and white!
