Fuel mpg lly???

[MEANMAX]

Just got back from upstate...20.4 mpg hand calculated 65-75 mph.

 

[duramaxdavid]

I get about 17 mixed and 10 towing the trailer with a truck on it. I stay around 10. it doesnt matter if im towing empty or loaded. I usually go 5 - 10 mph over the speed limit.

 

[x MadMAX DIESEL]

You don't to spend $700, you could send your ECM to somebody to tune it for alot less. Or just have your truck tuned by a local. My buddies said Gene tuned there truck for about 250 only..
Check out my sig, I have acouple tuners for sale too.

 

[x MadMAX DIESEL]

I think I know who tuned that truck BTW he's from Bryantsville or Mitchellsburg IIRC

 

[whitetrash21]

my lly gets 17-18 in town with a lead foot...and i 19ish on the highway for extended periods i have gotten 20+ on occasion


hand calculated

Same here.

Using EFI with a dsp5.... Made the trip to san diego a week ago and avg'd 16.8 running 90-100mph the whole way. trip back it was up around 18.5 running a tow tune at ~80.

 

[MANDOMAX]

I've gotten up to 22 mpg hand calculated on a PPE stage 5 tune driving 70-75mph on highway miles only. I am roling 35" tires on 20" rims with 4:56 gears. I also have the Suncoast 6 speed module added.