Found out right before we sold it that at some point it had nitrous on it. It was killing us on fuel cost. I guess they had a tune installed that they didn't take out. The best we got was 17mpg. We didn't buy it for the gas mileage, but when the best you can get is 17mpg, and where we were averaging on my wife driving it to work was about 10mpg. It had to go. However, my wife informed me the other day that after we pay off our Mustang GT that we will be looking to acquire another SS for another vehicle.
