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The Official "My Gas Mileage Sucks" Thread


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Well to be honest this is the number one complaint of many KJ'ers fortunately, there are some things you can ...

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Old 02-04-2005, 12:19 AM   #1 (permalink)
 
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Default The Official "My Gas Mileage Sucks" Thread

Well to be honest this is the number one complaint of many KJ'ers fortunately, there are some things you can do.

Basic Things:
1.) Check Air Pressure of tires, lower pressure = more rolling resistance.
2.) Check to make sure air filter is clean.

Mods:
1.) Cat Back Exhausts are known to help mpg by 1~2 mpg sometimes 3.
2.) Aftermarket Cold Air Intake or Drop in K&N filter
3.) High Flow Catalyic Converter
4.) Some people have mentioned with a throttle body spacer does help. (I can't verify this, because I don't have one)
5.) Synthetic Oil supposed to give maybe 1~2 mpg with a good filter.
6.) Some people mention better spark plugs can help

Things that make MPG go down.
1.) Lots of Lights / Baskets
2.) Bigger Tires
3.) Lift (I noticed after I did the clevis it dropped, but it really didn't change much after my lift-The slight tilt must add better air flow)
4.) Huge heavy sub boxes
5.) Full car load of people
6.) Under inflated tires
7.) Pulling a trailer
8.) Excess drain on alternator
9.) Air Conditioning
10.) Opening Windows
11.) Offroading
12.) Winter Gas
13.) Driving Hard - be nice to it and it will be a little nicer to your pocket.
14.) Excess weight in general - Skid Plates, Brushgaurds ...
15.) The computer gets mad if it doesn't go offroading every month, and deciedes to dump lots of fuel into the motor- So make sure you take her out every once and a while.

As I side not I found my Liberty gets the best MPG at 61 mph.


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Old 04-26-2005, 08:24 PM   #2 (permalink)
 
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My 2002 KJ previously sucked gas; my 2005 KJ now does not. \/
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Old 04-26-2005, 11:44 PM   #3 (permalink)
 
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Originally Posted by gsbrockman
My 2002 KJ previously sucked gas; my 2005 KJ now does not. \/
Greg



HAHA nice try!! lol. hmmm wonder if CRD has something to do with it.
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Old 05-31-2005, 11:56 AM   #4 (permalink)
 
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hello... this is my first post. whats poppin?

okay... what is the general average MPG for highway driving? i get better mileage in the city than on the highway... is this normal? i'm running about 19.5 MPG on average...
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Old 06-03-2005, 10:40 PM   #5 (permalink)
 
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Originally Posted by rasputan
i get better mileage in the city than on the highway... is this normal? i'm running about 19.5 MPG on average...
Is your highway driving at 96mph into a headwind?

My CRD seems to get me about 28 mpg highway (on a warm day), but the overall average is about 22.
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Old 06-06-2005, 04:22 PM   #6 (permalink)
 
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Originally Posted by melted
Originally Posted by rasputan
i get better mileage in the city than on the highway... is this normal? i'm running about 19.5 MPG on average...
Is your highway driving at 96mph into a headwind?

My CRD seems to get me about 28 mpg highway (on a warm day), but the overall average is about 22.
usually around 80ish... is that 28 to 22 canadian or american? i forget what the exchange rate is nowadays... lol (from toronto).
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Old 06-08-2005, 12:36 PM   #7 (permalink)
 
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also... i should have said "interstate" instead of "highway" and that was my overall average. typically, on highway roads where i'm doing under 65-70 i usually get between 25-21 mpg.
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Old 06-08-2005, 08:35 PM   #8 (permalink)
 
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in the last week, mixed motorway? city driving i have been using 11.3l per 100 kms, to you US guys just over 20MPG which is not too bad
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Old 06-11-2005, 08:45 AM   #9 (permalink)
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Currently averaging 28.1 mpg!

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Old 06-11-2005, 08:47 AM   #10 (permalink)
 
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yeah but you got a diesel
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