Hi guys anyone put a tuner in that has helped. I bought this truck thinking they got at least fair mileage but it's going to be parked soon if the gas prices stay this way. I get better gas mileage from my fl-70 freightliner that ways 10,000 lbs more. I am getting between 7 and 8 It makes no diffrence loaded or not it doesnt seem to matter. I;m thinking a gear swap might be the only way out. Suggestions please:sheephump

Hi guys anyone put a tuner in that has helped. I bought this truck thinking they got at least fair mileage but it's going to be parked soon if the gas prices stay this way. I get better gas mileage from my fl-70 freightliner that ways 10,000 lbs more. I am getting between 7 and 8 It makes no diffrence loaded or not it doesnt seem to matter. I;m thinking a gear swap might be the only way out. Suggestions please:sheephump


7-8 empty or loaded? And at what speed? At ~65 I can get up to 15 unloaded. Loaded up though 10-11 are the norms. This is with an edge set on level one.

I am weighing in at 15,300 unloaded and generally haul about 7,000 in cars 50% of the time. Any part # on that