Originally Posted by johnnyk416
Yeah that works too but it will give worse fuel mileage. The benifits of a tuner far outway the cost.
I will have to say that the style of driving I do does not make any difference with the MDS on or Off...... I constantly hit the reset button on my overhead to see the real time MPG while in MDS with the truck on the back roads and it is the same as with Tow-Haul Mode on. MDS only works to a + while at Highway speeds of 60+ MPH.....