I am running the h&s xrt pro tuner on my 2012 ram. What power level should i run to get maximum fuel milage. Also what are you all seeing as far as fuel milage on your trucks?

 

I'm about to put that on our 12 as well. I do know I've heard dif people get better on some settings than others. Depends on truck, weight, heavy-light foot. I've heard most that go real easy see best on the highest setting. But I think in the end you'll have to compare each setting and find the sweet spot for yours.

Stock our 12 can't see better than 13mpg.