I have no idea why but for a while now i have been getting really bad gas millage...i have dont the air box mod...and e-fan....i have an aftermarket exhaust...i just got home from a trip 230 miles one way and im only getting 16mpg on highway....any sugestions on what i should look at or do?

 

thats a lot better than i got on the current tank... i got to 160 miles when the light came on

granted it was really probably 170-180 thats still really bad

 

dude i am getting a constant 10-12 mpg.

 

check the following things:
- air pressure in the tires
- air filter (is it still clean?)
- when was the last time you replaced the fuel filter
- when was your last oil change
- are there any hidden codes in the computer

remember that since it is getting colder the gas stations are starting to get their "winter" gas in.....the "winter" gas doesn't burn as completely as the "summer" gas does.....

 

time for new gears i am getting roughly 15 mpg in the city and super duper close to 18 mpg on the highway.......

 

I get 200 out of a tank, not good.

 

i can get 320 on a take of gas which works out to being about 17. i get some where bettween 15 and 18 most tanks i wish i got more and thats a complete stock truck. the only thing done to it is i seafoamed the motor and i have 247000 miles and i get that good and i want better so idk what to tell u. but ihave a ? where is the fuel filter?

 

Clean your MAF. I did that back when I had my truck with an oiled K&N filter and bumped it up ~3mpg.

Couple bucks for the aerosol cleaner spray stuff. Pretty simple to do. Definitely worth a shot.

 

............Wish my pig got "gas mileage"....average on mine 13-15.....my K-1500 gets mileage better than that........

 

16 is what your truck is rated stock...

 

being on 37s runnin 4.88s and a xcal2 programmer runnin plus i get 12-13 city and like 13-14 hwy..

so something is wrong there my friend

 

Winter Fuel Blend FTL!

Mileage took a hit about 2 months ago. I haven't had a chance to check my PCV valve, but everything else looks fine on my end of things. I was getting 16-17 city and 19-20 highway, even after putting the RCD on. Again, about 2 months ago I took a hit in mileage. Only thing I can think of is winter fuel blend. I just filled up 9.970 gallons last week, went I believe 153 miles giving me 15.3 mpg for city driving. Before the lift and before going to 33s I could do 400 miles to a tank easily. And even with the 33s on I was seeing around 20-23 mpg highway/16-19 city/18-20 mixed driving.

 

yea thats what im saying high way im only getting 16 per gallon...just kinda messed up....i dont know....its makeing mad...im thinking about striping the truck down for the winter and maybe tradeing it in...The truck just hit 47000 on the way home...im going to do a oil change...clean the maf...check the PCV valve....seems like since day one i have had bad luck with things on this truck, and i really dont want to get rid of it..

 

all i can say is 170 miles is REALLY hurting!

 

this is why i got my beater

 

16 is not bad at all...

i dont see why you are complaining. 16 is what you should be getting...

 

x2....

EPA 15 city/19 hwy!

That aerodynamics reducing light bar up top isn't helping either! 47000 and you're thinking of trading it? I have 61400 on an 04!

 

 

Lol....i would like to be getting 19 on the highway thats what im trying to do...there is no light bar on top any more....the out side of the truck is pretty much back to stock besides the wheels and the body lift...the light bar, lights on the front, topper every thing has been taken off for almost a year now...

 

with my 20s and 33s i only get 14 mpg on a tank and thats mostly highway driving. when i had my 245/75/16s i got high 15 mpgs.

 

We are local to each other.. my milage has been down for a month or so now. I think it's a combination of the colder air and winter fuel.

I'm usually in the 20-21 range and my last tank was at 18.xx

Rich

 

I just did my mileage yesterday. 357 miles on 17.7 gallons. That is lower than normal for me, but as said, Michigan cold and winter blend gasoline will do it...

 

I've noticed a big drop to recently, now its only getting to about 30 some degrees for highs which i know has a role, but i remember watching it go from 15mpg to 14.6....14.4....and now to 13.7 all within a month and a half,i was going to clean the MAF, went to advanced auto parts and saw a bottle of cleaaner but it was expensive, would aerosol cleaner worK? like air duster?

 

yea soon enough. but i dont wanna due gears until i get the lockers, well the rear anyway. cause my dad only wants to set them up once.

to help milage i am thinking exhaust, tuner, and headers, and cought supercharger.