Dodge 5.9 vs ford 6.0 in MPG

[bushpilot]

My uncle has an 05 SRW Ram 3500 4X4 with clod air intake, and dual turbo back 4" MBRP exhaust with no cat and 35" tires. At 55, which is the speed his truck get the best MPG at, he get about 20-22 on the highway.

hell at that speed, assuming i would still be alive, i get 21mpg too.

 

[atk]

usually close to that speed i can get 23mpg....my BIL 03 Dodge gets around 19-20mpg....

 

[no-red 6 0]

i get 11 no matter what...









now you just depressed me again...hahahahahahha

 

[Maxtor]

Red,,, something is wrong.... My best is 21 mpg, but never below 17.8 mpg unless pulling our 5th wheel.

 

[walter.dreyer]

Thanks, Dave. I don't have the overhead console on my truck, so my MPG is always figured by hand. A guy I work with claims 20 Mpg,but I know he's using the console read out. Although I notice atk is claiming 23 MPG @ 55 MPH. I have to admit that I can't get my truck to go that slow though.

 

[02SilverStroke]

I've heard of some of the older 5.9's getting 25 mph on the highway. I'm sure the 250 PSD's would get a little better mileage if they had the 3.55 axle (as they did with the OBS) instead of the 3.73. But then the towing capability would be less.

Well, it looks like Ford "took my advice" and now are offering the 3.55 on some of the Super Duty models: PickupTruck.com - Job Three 2008 Super Dutys Get Fuel Economy Improvements

Too bad it isn't a limited slip axle.

 

[bushpilot]

problem is that 3.55 aint gonna mean ****...all theyve done
is put a TINY band-aide on the piss poor mpg the 6.4 is delivering

 

[02SilverStroke]

Going to take a trip to Louisiana tomorrow to take my mom back home. We'll see how it does then. That will be a 700+ mile round trip with a few stops along the way, so I'll probably be doing good to get 19.5.

Oh well, the mpg was more like 18.5. Of course, I had to drive about 80 on the "Interstate 20 racetrack" which made it hard to use the cruise control.

 

[Maxtor]

Oh well, the mpg was more like 18.5. Of course, I had to drive about 80 on the "Interstate 20 racetrack" which made it hard to use the cruise control.

That is very good mileage for that speed. We get 18.5 at 70 mph with the cruise control on.

 

[atk]

Thanks, Dave. I don't have the overhead console on my truck, so my MPG is always figured by hand. A guy I work with claims 20 Mpg,but I know he's using the console read out. Although I notice atk is claiming 23 MPG @ 55 MPH. I have to admit that I can't get my truck to go that slow though.

that would be a Cdn gallon....it is a little more then a US gallon....