I don't get it...

[Provokr]

My truck gets 10-13 MPG no matter how I drive. Yes, it has a 5.0 and it is AWD with 31's, but 10-13 MPG? It doen't matter if I drive nicely or aggressivly. I get the same mileage. I have no lights on and it starts like it should and it doen't studder or anything. I DO smell a LITTLE excess exhaust but it really is not that bad.

 

[Donner]

What don't you get? Your driving habits probably don't change, so you don't see any difference. Try it with a few hundred pound sacks of sand in the cargo area to see if it's changing. I don't see any difference either, I don't look anymore... my pockets are lighter after each trip to fill up... Funny thing, there was a whole new row of gas siphons at a car parts place... wonder why? Good luck!

 

[chriswells78]

Cleaned your MAF sensor lately?

You could also try re-gearing to the point where your 31's are equal to that of stock gearing.

 

[Provokr]

LOL So, there is pretty much nothing I can do?

One thing I did notice... It has true dual exhaust, but no x-pipe to balance the cylinders. Would that matter...

 

[Provokr]

And I do have 160,000 miles...

 

[Donner]

That was a hint...

(Get a siphon... when gas prices hit $5.00, it'll be free for us :shifty_ey Just be careful, and no one can see this message but you and I)

 

[Provokr]

someone is trying to tell me that it is probably the tps
he claims that he is ase certified... whatever

 

[Turdle]

Could be -
You might go to a inexpensive exhaust shop and have them check your cats-maybe they are clogged. They can weld a bung in upstream of them and check the backpressure--

 

[Donner]

What should the mileage be for your vehicle?

 

[Provokr]

IDK...I am guessing 15-20...

 

[Willard]

That sounds about right, although more around the 15 with everyday driving.

 

[Donner]

No added items, step bars, larger tires or rims... all stock?

 

[ThePhoenix]

an inexpensive what? I dont know any inexpensive shops for anything...well, maybe tire mounting

 

[Provokr]

No added items, step bars, larger tires or rims... all stock?

Everything is stock except 31's

 

[Donner]

You live in Florida...

an inexpensive what? I dont know any inexpensive shops for anything...well, maybe tire mounting

Could be -
You might go to a inexpensive exhaust shop and have them check your cats-maybe they are clogged. They can weld a bung in upstream of them and check the backpressure--

You don't have anything inexpensive there... They just tell you to hava cafecito and wait til they're done... like CA, only no cafecitos

 

[Donner]

31s are your answer...

Everything is stock except 31's

those things are heavy x4!

 

[Provokr]

those things are heavy x4!

yeah, I know. I just sold my old M/T's and had to haul them for the guy

 

[chriswells78]

an inexpensive what? I dont know any inexpensive shops for anything...well, maybe tire mounting

Hell, most shops around here will charge you at least $18 per tire.

 

[Donner]

And a spare?

 

[Provokr]

Hell, most shops around here will charge you at least $18 per tire.

yeah, it is expensive...
mounting is like $4-6 depending where you go and balancing is like $3-5.



ANYWAYS... does anyone have suggestions besides clogged cats? Can I check them myself???
I think I can rule out the MAF since my truck runs fine... am I right?