Reset in car mpg on dash after dealership refueled car....
Started out at 28mpg on car and Onstar .......and then started dropping.
Car now says 26.2mpg
Onstar lifetime mileage now says 19mpg (started out at 28)
I never go over 2000 rpm and drive very easy to try to get great mpg.
Started out at 28mpg on car and Onstar .......and then started dropping.
Car now says 26.2mpg
Onstar lifetime mileage now says 19mpg (started out at 28)
I never go over 2000 rpm and drive very easy to try to get great mpg.