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Thread: Fuel Economy Majic!

  1. #1
    Newbie GunmetalGrey's Avatar
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    Default Fuel Economy Majic!

    So yesterday I'm at home, getting ready to head back to work (6 hours away). My YJ is in need of an oil change. So I fix her up, throw in an air filter too, and carb cleaner for good measure. I top off with my normal 87 octane, and head on up the road.

    Now GG is a 93 with 170K miles on her. She still runs like a top, but I've never been able to squeeze more than 215 miles....and that's on fumes...out of her 19 gallon tank. Well last night I got over 250. It was "raining to beat the band" and I didn't want to push it, but the needle was still just north of "E" when I stopped to top off.

    Just goes to show what a little PM can do. The fuel economy alone paid for the materials it took to do it.

    I'm a happy man.
    I got your 'Newbie' right here, pal!

  2. #2
    Administrator korisu56's Avatar
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    As would I be if I could squeeze out anything over 180 on the jeep.

  3. #3
    Administrator miljeep's Avatar
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    ditto on the PM helping, but if I got that kind of mileage, I would be towing my wife's truck to Texas rather than have her tow the jeep.

  4. #4
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    I thought my milage went to crap when I put my 33's on. But I'm almost ashamed to say that I'm sqeezing 240+ out of a tank on my LJ.

    You guys got me feeling good about that kind of milage now.

    FYI. Another trick for squeezing an extra 1+ mpg outta the jeep is to remove the airhorn off the front of the factory air box (if the factory air box is still installed that is) I actually saw a solid 1 - 1.5 mpg after doing so. Every bit saved at the pumps is a little more for the

  5. #5
    Newbie GunmetalGrey's Avatar
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    Just squeezed out another 250+ tank of gas. I could get used to this!

    Note:
    These are non-stop (or almost non-stop) highway miles. Last time my avg speed was 55-60, this time 65-70. In between these two "highly economical" (for a jeep) tanks of gas, I had a city, stop and go, multi-trip tankful that got me my formerly normal ~210 miles/tank.

    Still experimenting!
    I got your 'Newbie' right here, pal!

  6. #6
    Administrator miljeep's Avatar
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    Damn. I may be doing some extra PM on my jeep this week. That would be some nice MPG to have.

  7. #7
    No Balls muddyluxury's Avatar
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    i got from wilmington, NC to Kings dominion about 304 miles on about 19 gallons of gas, average of ~15.4 mpg going 75-80 with a spare on the roof
    -Jeb

    99 GC Ltd. V8. plenty of goodies, 6in lift 33s, rear locker, 12v cooler, steel bumpers fr+rr, Roof Top Tent,
    01 TJ 4.0 auto.. stock street queen for now.

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    Junior Member texascj's Avatar
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    I normally get about 150 the 15 gallon tank on the CJ. It should show some improvement when the Howell system is finished and I get her running.
    81 CJ7, 30 over 258, did the Weber thing now I'm going with a Howell injection kit, 2.5 lift, SRS, and the all important M998 instrument panel with Equus gages. Also have a 71 AMC 360 to rebuild when I kill the 258.

  9. #9
    Machete wielding woodsman 94GC52's Avatar
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    Me the wife, 2 kids, bikes on the rack, and a full load of crap for 2 weeks drove the GC from belvoir to PA, I was averageing 13-16MPG. I hate all of you.
    Got Machete?

    98 GC Special Edition 5.9l (build in progress) RE 4.5" SF Lift, Mickey Thompson 33" MTZ's, 15x10 ProComp 152's, ProtoFab Pre-Runner Winch Bumper, 10k winch, Np242 Tcase Swap...

  10. #10
    Newbie GunmetalGrey's Avatar
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    Quote Originally Posted by muddyluxury View Post
    i got from wilmington, NC to Kings dominion about 304 miles on about 19 gallons of gas, average of ~15.4 mpg going 75-80 with a spare on the roof
    This is my goal. If I get another 50 gallons out of a tank, I stop tinkering.
    I got your 'Newbie' right here, pal!

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