kooldawg6
mine works really well and can take a fair amount
I am averaging between 17 and 18mpg have under 2000 miles on it. I know I could do better but this cars just a toy, im not worried about the fuel as much so i'll keep my foot heavy.
+1
I am averaging between 17 and 18mpg have under 2000 miles on it. I know I could do better but this cars just a toy, im not worried about the fuel as much so i'll keep my foot heavy.

Only had it a week, but here's my 2 cents....
Driving it back home after collecting it (300 miles) I had the cruise set to 60mph, and once at that speed I reset the average mpg and after 100 miles it was reading... you ready for this? I kid you not.... 30.8mpg!!! Seriously... I wish I'd taken the risk of getting my phone out to take a photo, as no one believes me now.
[edit]
Looks like mpg is seriously variable depending on how you drive it, and where, and at what speed.
[EDIT]
Just realised there would have been no risk in getting the camera out, as all I had to do was pull over... Doh! How dumb do I feel now? Was in such a rush to get it home, stopping was not part of the equation![]()
30MPG in a V6 is respectable, but a GT?! Definitely the Master of control behind the wheel.
It was flat, level ground too with occassional downhill stretches. It IS an extreme case, but I averaged this over a couple of hundred miles.
) Car now has 17,000 miles on it (06 GT, manual trans) Fuel mileage was 21-25 mpg, average was 23 mpg. Same trip last year without trailer was 24 mpg. Who says you can't tow with a Stang ? 
Before supercharger: 15mpg city
After supercharger: 17.3mpg city (17mpg if I get on it a lot)
I don't really ever get a chance for highway miles here in LA traffic.
Wish I could tell you but I am never on the road enough at highway speeds. I LOVE LA! :\

but it's a nice ride.