Reviewed By David D (Clarksville, TN) Reviewed for a 2012 Ford F-150 —7/15/2014 6:24 AM
I have only used the programmer on level 1 so far but am happy with the results. Better throttle response, increase take off and smoother idle. Waiting until I need fuel before I try the other levels. So far I have not seen any improvement in gas mileage but I didn't buy my truck for it gas mileage in the first place.