I put this under car care because using the proper gas is car care to me. Now that is said here is my question.
I have a Mobile station near where I live and a Volaro about 13 miles away. A little back ground on my Buick.
I purchased it new in 2014 aug 3rd it had 7 miles on it and it is a 6 cylinder, GM says 18 mpg city 28 mpg highway.On a trip to my sons in Charlotte, N.C. (I live in New Hartford N.Y. just outside of Utica, N.Y,) The trip is 875 miles one way. On the way down I used Mobile Gas and got 31.8 miles p/g at that time the car had about 2300 miles on it. Now the big question, when I go to the Mobile station near me I get 19.2p/g city and 27.6 p/g highway. If I go to Volaro which has on there pumps TOPTier Gas, on the pumps I get 26.7 p/g city and33 p/g highway. Is it possible the Mobile station is not topteir. Thank you for taking my question.