My 2011 mustang v6 is getting pretty awful gas mileage. According to the display on the dashboard it’s getting 11 mpg around city with light stop and go. Haven’t taken it on the highway in a week so no exact numbers at the moment for that.
The display is also reading the message “check fuel fill inlet.” I’ve watched a few videos and tried cleaning it with seafoam as recommended and then reset the message but it keeps coming back.
There is no obvious damage on the fuel fill inlet (the 2011s use a capless fuel system.) Other than the car getting bad gas mileage there is no check engine light or any other symptoms. I’ve checked for a fuel leak but found nothing. I’m not smelling gas either while i’m driving or walking around the car.
I’m just not sure where to start