It might be worse than that. I used to go to about 150 miles before the idiot light would illuminate but now it's 120-130. Or mayabe I'm just having more fun.cloud9 said:Correct on the 2013 Boss, and I'm not sure about the GT500, but that is why we have skip shift in the 2012. It's purely an MPG gimmick. That said, fuel mileage with TK averages about 2-3 mpg less with or without skip shift.