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Old 04-17-2011, 03:20 PM   #1
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Miles per Tank on 4.0L?

Just curious this. I see what people say for MPG's but most of them are 4 cylinders. What about the 6 cylinders. I know mine is not good on fuel being my gauge does not work, until I get this aftermarket one all wired up. Last time I ran out of fuel on the road I had like 180 miles to the tank that was full. I did some offroading and lots of idleing and testing but is that normal? With normal daily driving is that all im getting? Givin I know my tires are not helping ONE bit.

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Old 04-17-2011, 06:42 PM   #2
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i have got 270 miles out of a tank of gas, im running the 4L 5 speed with 32x11.5 bfg all terrains but normally i run around 240 miles per tank

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Old 04-17-2011, 06:55 PM   #3
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the wife's 93 with auto and stock tires got about 240ish. my 87 with 4.2 and auto gets about 180
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Old 04-17-2011, 07:02 PM   #4
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I never run to empty-but the idiot light and chime usually happen around 240-250
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Old 04-17-2011, 07:05 PM   #5
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240 or so if its hwy
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Old 04-17-2011, 07:05 PM   #6
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My light comes on right around 220. Thats with 31 inch tires and alot of back road driving.
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Old 04-17-2011, 09:22 PM   #7
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i get 260-270.

31x10.5 tires.
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Old 04-17-2011, 09:26 PM   #8
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I am getting about 200 with 33x12.50 BFG and 2.5 lift
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Old 04-17-2011, 09:36 PM   #9
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Not near enough
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Old 04-17-2011, 11:59 PM   #10
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lol average 115 miles to a tank. Little better with a tail wind. Farthest ive ever gotten on a tank was 131 miles. Which is a whopping 8.7 miles to the gallon.
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Old 04-18-2011, 12:01 AM   #11
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lol average 115 miles to a tank. Little better with a tail wind. Farthest ive ever gotten on a tank was 131 miles.
same lol
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Old 04-18-2011, 02:52 AM   #12
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All of you who averaged like 230-240ish, how big of a tank do u have??
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Old 04-18-2011, 07:33 AM   #13
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15 miles a gallon x 20 gallon tank = 300 miles for me..........but i always chicken out and fill it between 260 and 270.
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Old 04-18-2011, 08:08 AM   #14
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130miles. roughly. 33x12.50 stock3.07 gears all city driving.
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Old 04-18-2011, 01:01 PM   #15
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Well I get between 15 to 17mpg x 20g tank = 300-340...but I dare not touch 250 w/o filling up...I hate running out of gas.

4.0l ax15 3.07 gears stock tires or 33x12.5x15.

My jeep is consistant for mileage, it is mostly highway driving I do.
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Old 04-19-2011, 07:12 AM   #16
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Originally Posted by blackhawk View Post
All of you who averaged like 230-240ish, how big of a tank do u have??
I think the manual says 19 gal. I have 31s 5spd and 3.73s almost exactly 50/50 driving city/highway.
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Old 04-19-2011, 09:01 AM   #17
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Your not alone,Our 93 YJ barely gets 15mpg thats on the street or in the hills.6.0-5spd.4"lift running 32s.
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Old 04-19-2011, 10:47 PM   #18
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Awesome thanks ya'll makes me feel good about runnin out at 180 but that was pretty much all idling, testing, and trails. With the damn swampers on.

Installing a Sunpro fuel guage this week so no more guessing! Thanks for the info all.
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Old 05-01-2011, 05:45 PM   #19
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So bump for this. 180 is deff all I can get ran out the 2nd time now at 175 haha. OOPPPSS. Might look into a small sneekie peet fuel container somewhere underbody or use the ol military can setup off r. bumber haha. Wish I didn't have these damn TSL Swampers I do a lot more road driving thatn I expected!
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Old 05-01-2011, 05:49 PM   #20
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I get about 240 miles average per 20 gallon tank on 33 12.50 and 3:73 gears. Don't trust your odometer unless you have corrected for oversized tires.
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Old 05-01-2011, 06:44 PM   #21
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330miles to the tank. I have 3.55 gears.. don't know if thats stock or not. I did a test to see how far off my odometer was.. found out it is .2 miles off. I have some math to do to find out what my mileage is... 16.5mpg... was more but got a lift...
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Old 05-02-2011, 09:28 AM   #22
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4.0, manual, 35" tires, 4.10 gears (switching to 4.88 soon) I get 15.8

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