My truck will barely hold at 45 mph with 4:10s. I see an increase of 2-3 mpg in MDS mode, truck just won't hold it. What are everybody else's expirences?
Here are some pics of the mpg's on mostly flat ground and maybe 10 mph winds at 70 (some tailwind) and 55 (crosswind). MDS is on in these pics. I reset the mpg that morning, drove to work in traffic and the pics were taken at lunch on about a 25 mile stretch of highways with a couple of stop lights. To and from work it averages 14+ usually.That gives me hope! I'm gonna let it break in a bit longer and let the dealership look at it. What kind of mpg are you getting on the highway? 15-16 is about my average with short stretches around 17-18. The few times mds kicks in, mpg jumps up to 20-21.