I would like to increase the mileage as much as possible. I have a 2007 Ram 1500, 2WD, 5.7l Hemi and was wondering what changes will maximize fule mileage and how much of an improvement to expect from the mods.
Thanks,
Mac

 

The "Prius" mod is by far the best.

 

well buddy, first of all you got a truck with a big v8. That's all I gotta say pretty much.
If you want to increase you can throw in a CAI, a tuner, e-fan, and supposably a tonneau cover, you'll add up around 4mpg I think

 

Along with all of that add losing the tail gate and other weight, smaller tires and lighter rims, proper tire air pressure, synthetic oils, dropping the truck to the ground, changing the shift points, custom tuning (for MPGs).