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Unread 02-27-2014, 08:57 AM   #1
smitrode
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Gas Mileage

I have a 2012 GC with the 5.7L and 18,000kms. The gas mileage sucks! The dealer is trying to ensure me that it will improve after driving it for 25,000kms or so. Has anyone else noticed that the efficiency of the engine and gas mileage greatly improves after a while?

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Unread 02-27-2014, 09:56 AM   #2
WhiteOut
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You bought a brick with a Hemi. What did you really expect?
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Unread 02-27-2014, 11:30 AM   #3
02WJneedslift
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Quote:
Originally Posted by smitrode View Post
I have a 2012 GC with the 5.7L and 18,000kms. The gas mileage sucks! The dealer is trying to ensure me that it will improve after driving it for 25,000kms or so. Has anyone else noticed that the efficiency of the engine and gas mileage greatly improves after a while?
Quote:
Originally Posted by WhiteOut View Post
You bought a brick with a Hemi. What did you really expect?
This.

I think if you pull the engine and replace the vehical you might get better MPGs lol. JK

What Kinda of MPGs you getting?
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Unread 02-27-2014, 11:47 AM   #4
smitrode
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I am getting about 20L/100km 14mpg (imp), city driving in the winter.
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Unread 02-27-2014, 12:01 PM   #5
Hurley91
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Quote:
Originally Posted by smitrode
I am getting about 20L/100km 14mpg (imp), city driving in the winter.
I don't think you're too far off. Don't forget you get worse gas milage in the winter.
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Unread 02-27-2014, 12:41 PM   #6
festerw
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EPA estimate is 13/city 20/highway.
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Unread 02-27-2014, 01:13 PM   #7
02WJneedslift
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Originally Posted by smitrode View Post
I am getting about 20L/100km 14mpg (imp), city driving in the winter.
Yea that aint bad.

My 02 WJ is getting 16 in the city and 20ish on the highway. That with a 4.0 6cly
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Unread 02-28-2014, 08:48 PM   #8
Indy
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You will see a little bump once the engine breaks in. Odds are it will never get "good" mpg though.
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Unread 03-01-2014, 07:57 AM   #9
tyvanwie
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No way, you bought a heavy *** vehicle with a V8, not good aerodynamics, and you aren't getting good gas mileage? That is odd...
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Unread 03-01-2014, 08:03 AM   #10
JeepComanche89
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I heard if you put sugar in your gas tank you'll get like unlimited miles per gallon.
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Unread 03-01-2014, 09:14 AM   #11
Indy
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My 04 with the ho 4.7 got 16-18 mixed and around 20on a good highway day.
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