Originally Posted by dauer53
By turning off the Tow/Haul option you automatically put the truck in "5 mode", once diablosport has a tune for the 2011's you should be able to turn the ECO mode off as an option... I've also heard the rumor that turning off the ESP can help with gas mileage... anyone have any insight on that?
Chrysler engnineers have said not to use Tow/Haul to deactivate MDS. There is a sticky about it on here somewhere. The best thing to do is use the shifter to change to 5 mode. The transmission will shift normally and overdrive is NOT turned off.