Updated Fuel Mileage Record-9.1 mpg

[lonestar16]

i have a 13 speed would it do any harm running it in 12 to keep my rmp up more or should i keep it in 13 rolling down the road..i dont mind slowing down in i try m keep my boost around 20 going up hill in i dont use the cruse at all never did likethe cruseim all about making the most mone i can in will try what i can to reach that goal..