LMM: Mpg

THduramax

Will it ever end!
Aug 15, 2012
407
0
0
Flaherty, ky
Dads truck is a 07.5.. Has dpf delete and single 50hp tune.. Says he gets about 13-14 mpg.. He asked if he should get aftermarket cold air intake to help mpg.. Thoughts on this? Better tuning?
 

duramaxdiesel

Dmax Nut
Oct 23, 2008
1,378
0
36
47
Montreal, Canada
Wow that sucks for mileage! I used a LMM 2007.5 for two weeks, ccsb, completely stock on winter fuel and was getting 15.5-16mpg. There must be something wrong somewhere.

Nick
 

whitelmmmax

Smaller than stock
Jul 26, 2011
693
0
0
37
lake charles, la
I get around 17-18 with a light foot. But no intake is not worth it. I think my milage actually dropped a little bit when I put mine on when I just had the stock turbo.