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 Post subject: Horrible gas mileage...whats wrong??
PostPosted: Wed Jul 06, 2011 11:57 pm 
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Location: Hermosa Beach, CA via Pittsburgh, PA
Hey all,
I have been using that Fuelly site to get my gas mileage. Im at 12.7 with a combo of city/highway driving. I change my oil regularly and my air filter is clean. What is wrong? I know the lift and all terrain tires are hurting my mpg but this is very bad. Any ideas?
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Sam


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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Thu Jul 07, 2011 1:59 am 
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Better then I get.


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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Thu Jul 07, 2011 9:48 am 
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tjkj2002 wrote:
Better then I get.



Humm i wonder why? Im only getting 13ish

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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Thu Jul 07, 2011 11:49 am 
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Zack A wrote:
tjkj2002 wrote:
Better then I get.



Humm i wonder why? Im only getting 13ish

:-)r :-)r :-)r :-)r :-)r

But 10 city and 17 highway is not bad for 3 tons of fun.One of my co-workers has a trailblazer and he get's worse city mpg's then I do and it very well maintained and stock.


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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Thu Jul 07, 2011 12:21 pm 
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12.5 most tanks,have gotten as little as 10 to upward of 21mpg.

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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Fri Jul 08, 2011 5:27 pm 
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Location: Hermosa Beach, CA via Pittsburgh, PA
It' advertised as getting 16city 17combined, 20 highway. Some of you guys are running much bigger tires, heavy bumpers and winches, much higher lifts...obviously this will drastically decrease mpg. I never followed mine until now and was surprised at how poor it is. I only have a small OME lift and stock size General AT2. I think I should get better. I am going to try the homemade CAI and see if that helps. Also, im probably due for new spark plugs...anything else little i can try?


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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Fri Jul 08, 2011 6:15 pm 
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4x2 2003 KJ 3.73 gears 101,600 hwy 22-24 city 16-18. Syn. Blend oil, newly changed rear gear fluid, new spark plugs, A/Ts tires 40psi. and the tank stays full.

Have you changed your plugs?

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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Fri Jul 08, 2011 8:06 pm 
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mag03kj wrote:
4x2 2003 KJ 3.73 gears 101,600 hwy 22-24 city 16-18. Syn. Blend oil, newly changed rear gear fluid, new spark plugs, A/Ts tires 40psi. and the tank stays full.

Have you changed your plugs?

I changed them once around 20k miles ago or so...never the coils though


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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Fri Jul 08, 2011 8:07 pm 
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Location: Hermosa Beach, CA via Pittsburgh, PA
mag03kj wrote:
4x2 2003 KJ 3.73 gears 101,600 hwy 22-24 city 16-18. Syn. Blend oil, newly changed rear gear fluid, new spark plugs, A/Ts tires 40psi. and the tank stays full.

Have you changed your plugs?

I changed them once around 20k miles ago or so...never the coils though


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 Post subject: Re: Horrible gas mileage...whats wrong??
PostPosted: Mon Jan 16, 2012 9:07 pm 
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I have two Libertys and a Wrangler all three suck in the mpg dept. Even my 7.3 diesel gets crappy milage but that's because of all the performance work I have done to it.


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