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Unread 09-14-2008, 04:47 PM   #1
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1989 YJ Wrangler 
Join Date: Sep 2004
Location: Silver City, New Mexico
Posts: 461
Have you really read your owners manual

I just picked up a '08 4-door with a auto trany 3.73 gears yesterday, and the drive back from el paso to silver city, NM area were i live is 98miles. fuel calculator said I got 19.8mpg which was right on when I topped the tank off when I arrived home. Just to see if it was close. I read the manual last night at home since I got to drive it off the dealers lot in the dark and just wanted to get home and ran across a section that discribed driving conditions and how to handle them. Followed recommendation, and my milage is at 26.3mpg at the end of driving today. total miles so far is 221 off the lot. Our area is 6000ft+ and lots of hills.

get your owners manuals out and see if you can find what I did to improve your milage. if no winners, I'll let you know what to do at the end of the week. I'm real curious to see what kind of milage i'll get when the break in period is done.

89 Wrangler, 2.5L TBI, D30 Truetrac 4.56 gear front, Super 35 4.56 gears rear, 31" BFG Mud's, 15x9" weld racing pro-stars XP's, 2.5" rancho and 1.25" shackels, superior axles. rear wilwood disc brakes

2008 wrangler x unlimited. Stone white. Motech 5.3L LS Chevy

Last edited by JohnRodriguez; 09-14-2008 at 08:14 PM..
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Unread 09-14-2008, 05:00 PM   #2
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2008 JK Wrangler 
Join Date: Oct 2007
Location: Michigan
Posts: 1,810
I follow the shift points outlined in the manual. I can get about 19-20 in the city, and 23 on the highway. And thats by doing the math, I dont have the computer.
Detonator Yellow JK-X
150w windshield mount long range KC's
bumper mount Hella 500's/ 130w KC drivers
Uniden Bearcat CB/PA
Mopar bumper
Moabs/ BFG KM's
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Unread 09-14-2008, 07:25 PM   #3
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2014 JK Wrangler 
Join Date: Aug 2008
Location: Upstate NY
Posts: 401
I was thinking of that myself. Shift points in that six speed may make a heck of a difference, even with the Rubicon with 4.11 gears. I thought that the engine was a bit weak but I knew that prior to buying this new 08, just figured the manual would be better for the hills I have to travel over.
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