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..
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I see significantly better mileage, sometimes in excess of 25% immediately after a synthetic change. But that drops off rapidly with the first tank of gas..~300-400 miles
It's not hype... it just doesn't last
I still run it in everything but the C7
It's not hype... it just doesn't last
I still run it in everything but the C7
