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 can't tell in my van. I do it for longer intervals, and because it protects better under extreme use.
On my 1.0 EcoBoost, it did make a difference, even at the same rated viscosity. The effective viscosity under average temps is generally lower however, and that little motor probably has a fairly low engine oil temp under normal conditions. I did the switch twice, and average highway fuel economy was 4 mpg (48 vs 44) better with full synthetic. Drive cycles and conditions were very similar between the tests.
Note the 1.0 Ecoboost has a variable displacement engine oil pump, and an oil-bath timing belt, and piston squirters, so there's a lot more going in with the oil than other motors.
On my 1.0 EcoBoost, it did make a difference, even at the same rated viscosity. The effective viscosity under average temps is generally lower however, and that little motor probably has a fairly low engine oil temp under normal conditions. I did the switch twice, and average highway fuel economy was 4 mpg (48 vs 44) better with full synthetic. Drive cycles and conditions were very similar between the tests.
Note the 1.0 Ecoboost has a variable displacement engine oil pump, and an oil-bath timing belt, and piston squirters, so there's a lot more going in with the oil than other motors.
