Quote:
Originally Posted by Colo.TJ
On board MPG calculation is notoriously optomistic regardless of vehicle manufacturer. I suspect your calculations are more accurate than the on board display.
To get a true avg. MPG you need to track many tanks and then avg. those.
I've tracked my 07' since new and avg. a hair over 35mpg. 18,000 miles on the clock.
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^^This is true. I am finding its about 1-1.5 mpg optimistic. It can only calculate when the vehicle is moving so idling, inching through traffic etc. can throw it off accuracy.
