Hello,
What could be wrong... my Mustang GT 2008, 71K kilometers gas consumption city only is : 9,45 MPG and 8,38 MPG, Octane gas is 85, THANKS, Erpo

 

maybe you drive in reverse too much. That would add miles and not iterate miles on the odometer.

 

Long periods spent idling would definitely ruin your gas mileage.

 

Do u feel ok..? with such reply..

 

Where are you getting those stats? You manually tracking?

 

Sorry all, i buy this 2008 GT S197, 71K kms a month ago..former owner sold to me right away without mentioning the car was all prepared for 1/4 mile competition.. a bunch of extra which permit to this Mustang, well now mine, a 1/4 of mile in 13,2 seconds... talk about all extra it came with.... thanks all