Originally Posted by S.C. Express
With mine I have found the the mds to be worthless in town, 14 mpg avg.. I get better mpg's in town limiting the tranny to 5th gear. The mds requires too much throttle input for in town driving. On the Highway the mds shines. I have gotten 22mpg running a steady 70-75 on fairly flat interstate, even seen 24mpg at 65mph. I ran 80-85mph from Florida to S.C. and averaged 17.8mpg's, all this was done running 87 octane with the a/c running constantly. My truck is still bone stock unfortunately.
Forgive the question, Im still new at all this...it looks like we have the same truck and correct me if Im wrong but you limit the tranny to 5th gear around town and leave it open for highway driving?