i drive 6o miles a day to and from work and i work seven days on and have seven off but nyways i have tryed everything tha i can to get good millage but cant! i have the comp chip and it hurt more than helped i drive with the cruise control at about 55 or 60 mph i have changed all my fluids on the right time to change and it still is at 13 to 14 mpg!!!!!!!!!!!!! what is there i can do to help that or i am going to have to sell my baby and i dont wana do that but i am buying a house also what to do ? tire pressur is at 50 lbs and air filter is good what else i am desprate

 

Man, you should be getting better than that. Fill out your sig so we all know what your truck is. It'll help figure out the prob.

 

What tire size? Auto or manual? Whats your rpm's when in top gear doing 65 mph?

 

If you are being carefull you should be able to at least approach 18. Many do better than that. I am able to do that around town and on back roads and can approach or exceed 20 for long trips on the freeway. You may have a problem that needs to be addressed. As mentioned please fill out your sig and maybe we can help. Good Luck

 

Sounds like you may have one or more injectors that aren't functioning properly.

 

I am not sure what the problem is. My truck is stock and I have always gotten 16 > 18 around town and 20 > 22 on the highway when empty. You may have 4:10 gears which will make a difference. Mine is 3:55 I think.

 

I usually get what he is, depending how much stop and go I am in. I have the 4.10's and heavy 19.5" rolling stock. The extra width and height don't help, either.

 

powerstrokes get around 13 ,15mpg

 

ok i have a 5 speed and 3.55 gears all my buddies that have a truck like mine are getting around 18 or 20 my truck runs great with the chip on so i dont think it would be injectors it runs fine al out just sucks with mpg i run it oin the 40 hrs stage (nuber 1) any suggestions?

 

Woops - I see you got the signature...thanks! For a dually, that's not too bad?

My thought, keep the truck, pick up a little 5-speed older Civic or Accord for a couple tousand dollars and drive that to work. In the end, it rarely makes sense to trade in a veichle and have to pay for another new one just to make the MPG's work out.

Case in point - I have a co-worker who, for the past 13 years, has driven a series of three Ford Festiva's to work, 55 miles each way. The first one cost him $900,(blew away in a tornado) the second $350, and after he hit a deer and totaled the second one, the third one he got for free. 35 mpg, built by Kia (farily reliable) and cheap to run. Now just about the time you say "Too small" well he's over 6' and weighs "a fair bit beyond average." it can be done.

 

What kind of speeds are you doing to and from work? On mine, if I'm doing 80 mph on the freeway, I only get about 14 maybe 15 mpg. Thats about 2200-2300 rpms. If I drive 70 to 75 mph I'll get 16-18 mpg. Thats at 1800 to 2000 rpms. BTW I drive 110 miles per day. All freeway driving and up and down several grades. So I've learned to take it easy and keep it at or just under 75 mph. My pocket book certainly likes it........

 

What kind of speeds are you doing to and from work? On mine, if I'm doing 80 mph on the freeway, I only get about 14 maybe 15 mpg. Thats about 2200-2300 rpms. If I drive 70 to 75 mph I'll get 16-18 mpg. Thats at 1800 to 2000 rpms. BTW I drive 110 miles per day. All freeway driving and up and down several grades. So I've learned to take it easy and keep it at or just under 75 mph. My pocket book certainly likes it........

 

have you checked for codes??

 

I have tried running it at 55 it was 14mpg then tried 70 about same i have even tried the under 2 grand rule and didnt help i just think that there could be something that i am not doing or should be changed that i haved missed and my buddie has a 20 and 01 dually and they are getting 18 mpg. so i dont think the dually thing is it and he dont have anything done ecept a edge ez!!!!!