John82654 wrote:Thanks again Matt! I'm going to check FSM pages. Do you think Octane boosters and injector cleaners work? My brother just switched from regular gas to premium hoping that might help. I'm going to try the reset next week when I change the air filters.
You can get excellent MPG with a G37 on long road trips
Just returned from a round trip from NJ to Florida and got excellent MPG using regular 87 octane
While in Florida there were lots of short trips and that is clearly shown.
The four fillups prior and the four fillups on the return gave me excellent MPG
A G37X is AWD so you will see lower MPG.
Using premium fuel is not going to increase MPG
It will just make your wallet lighter.
Telcoman