Hey guys,

I understand that this has been a common topic among most Cummins forums which I have read over and over again. I am new to diesels and I and getting ready to do my deletes (egr, DPF, throttle valve).

With that being said I just picked up a mini maxx tuner and got the trans overdrive which I have read is almost a necessity with the 68RFE. Everywhere I look I see opinions on how to set up the tunes for the truck and half of it is Chinese to me.

I'm sorry to have to do this again to the Cummins world for the millionth time but I cant afford my truck blowing up because of my naivety.

So I have a 2012 6.7L 3500 with the 68RFE, I am currently not towing with it and I'm not looking for crazy performance just better mpg and longevity of the truck.

I always see talks about timing, att, defueling, and what not that I have no clue about.

Any help would be greatly appreciated and again sorry for bringing up this again.

Thanks all!!!