spareparts
Red Skull Member
- Joined
- May 21, 2020
- Member Number
- 1015
- Messages
- 45
After getting everything back to spec on this truck, I'm trying to squeeze a little more mpg out of it. I've heard all the claims about cummins trucks making 50 mpg. Yea,I know it's bs. I'm getting 17 average. Stock 2006 5.9 24 valve. New stock injectors, new stock.pump. turbo is stock( don't know if it's been replaced before I bought it). I can squeeze 20 mpg out of it if I keep in at 2000 rpm or below. That's fine for hwy 17, but going that slow on I95 wil get you run over. 373 gears, 285/70-17s. Running with traffic I'm usually at 2300 rpm. Would a tuner help with mpg at this high of an rpm? I'm not towing anything with it right now, makes plenty of power for what I'm doing. I'm spending a bunch of time going back and forth from Charleston to Raleigh. I looked at tunerdepot.com and they didn't have anything listed for an 06