08 superduty MPG going up

[supercuts]

just an update, i had posted my new superduty diesel was only getting 11-12mpg off the lot, well 6,000 miles later shes pushing 17-18mpg's highway. thats learning to really stay off the throttle in the 65-70mph range at or just under 2,000 rpms.

this truck has the average MPG setting on the dash and i spend so much time watching it im affraid when i floor it. ive found that by keeping the turbo psi at or below 10 psi its great on fuel. 20 psi shes getting thirsty and at 30psi up a 1 mile hill on I-84 in ct she was sucking!

[TXNSLighting]

Very good deal!

[Marek]

Are you still running winter blend fuel ?

[BIGBEN2004]

What truck did you get? F-250,350,450,550.....4X4?

[Gruneich Lawn Care, Inc.]

I have a 08 F350 with the 3.73's, The mileage really started to wake up around 8000 miles, at about 75 or just a tick under 2000 rpm, 17-18, cant wait to see what the mileage does when I install my edge..

[supercuts]

What truck did you get? F-250,350,450,550.....4X4?

08 f350 srw 6.4l 4x4 ext cab short bed, 3.73 rear

[supercuts]

Are you still running winter blend fuel ?

not sure, perhaps thats why it jumped up, didnt even give it thought.

[IA_James]

not sure, perhaps thats why it jumped up, didnt even give it thought.

A few thousand miles and #2 vs. #1 would account for alot of that. Figuring out how to drive it would get you the rest.

[Marek]

Do you guys know anyone with a 6.4 in a stake body, if so what kind of mpg are they getting?

[SimonCX]

Thats pretty good in my 05 powerstroke if I baby it on the highway the mileage is great but when it's stop and go loaded I average about 12-13 mpg. I waiting for ford to drop to 0% for 60 again so I can get another one.

[Marek]

Here in the mid atlantic they have 6500 cash back till the end of the month.

[Petr51488]

Is that empty? Mine gets around 21-22 empty on the higway with 7k miles. Your lower mileage could also be because of the winter blend fuel.

[supercuts]

Is that empty? Mine gets around 21-22 empty on the higway with 7k miles. Your lower mileage could also be because of the winter blend fuel.

and yours is also a gmc, yes empty. fords mileage is worse than GMC, you have a 6spd, mine is a 5spd

[TrapperJohn]

Sounds about right. My 06 F350 with crew cab, long bed and dually rear is averaging around 15 mixed city/hwy, 18 at 65, 20-21 at 55. That's taking it real easy. The PS has plenty of power, but if you use it, you pay for it. I was averaging around 12 when I was not paying attention and just charging through traffic.