MPG FUEL MILEAGE 6.0 Diesel

[Thecat]

Can some one tell me if this is normal.... 2004 Superduty F-250 diesel 65000 miles. Just did a 3000 mile round trip. All I can get is 15.5 mpg on paper "Manually".. is this all I should be getting??? 3:73 Gears, 2.5" Lift, Edge tuner/ attitude set on #1, Cold air intake, 5"banks turbo back. Running at 65-70 MPH. 275/65/18 Tires @60psi.Oh Yeah Hard toneau on back. Do I have a problem?? What can I do to make it better?? Thanks For any help New to the diesel world.. Crew cab Harley Davidson 4X4..

 

[fgtex]

Let us know a little more about your truck. If you have a 4x4 Crew Cab Long Bed, you may not be doing that bad. Winter fuel also drops the MPG's a tad.

 

[BamaSixGun]

15.5 sounds pretty good to me too. could it be the lift maybe? i would maybe try upping your tire pressure.

i run 80psi on all 4 on my F350.

just a thought.

 

[bushpilot]

at those speed i typically get at least 17mpg

 

[BamaSixGun]

at those speed i typically get around at least 17mpg

that's because your special bush.

 

[bushpilot]

interstate cruising...nothing special about it.
but i RARELY run those speeds...

ive seen as low as 12.5 pulling my trailer @ 80mph

 

[Maxtor]

mpg

Stock height, manual transmission, 2000 rpm, 70 mph, 18.5 mpg avg. Driving like an old man.

Your lift might cause you to loose one or two mpg. Tire inflation, maybe another -1 mpg. So you might be doing the best it can. I inflate my tires to 70 psi. If you have an automatic transmission, another -1 mpg. Since you have the edge, you also might be using that right foot more than you would if stock.

 

[Mobeydick]

My 06 gets 15.5 on average!!

 

[bling821]

I wish my numbers were as good as the ones you guys are posting. I get in between 11 and 14 MPG. I guess that might have something to do with the lack of interstate. I'll get to put it to the test when I drive from California to South Carolina. I'll get stock MPG and while in Texas i'm going to throw on the exhaust and intake. Then I'll get 1000 miles worth of numbers the rest of the way. This could turn out to be a cool experiment.

 

[BamaSixGun]

i think that the pic below can be the greatest threat to the endangered species known as GOOD MILEAGE

if you have a "Bigfoot" on the GO-GO pedal.