Grey2011GT

About the same as the rest - 19-23 city depending on foot

Hwy get 26-30 mpg depending on wind grade speed ect.

Seemed below 60 mph gave the most consistant high 20's mpg

Rubrignitz

Interesting thread. Makes sense since the 11's are closer spaced ratios 1-5 with the longer 6th over the 05-10's tremec 3650 so around town mileage is a bit less and a bit more (well, quite a bit more!) on the hwy. I wish I could coax 30mpg out of my car. Every time I look down at the computer it's sitting right around 19-20.5 city and I've seen it hit 24 max on the hwy with 3.92 gears. 30mpg would be very nice.

Wheel/tire size/revs per mile can also throw the driving computer off. I've changed wheels and saw 30mpg figures until I reset revs/mile in the tune.

Element155

17.6 mpg avg

Element155

how are you guys measuring, i have gone off the dash info screen and recently boasted the number with a long highway trip, they were like 12.5-14 mpg

chain1

If I go by what the car is telling me, I'm averaging 9.8 mpg.

rax5173

I get 16.5 -17.1 MPG in the city (44 miles round trip every day all flat and most of the time in the highway @70-80MPH and 2 stop lights. is City traffic but is fluid.) Around 19 to 21 in highway when is out of the city limits.

2011 GT500 SVT package