Lets talk Speedo Correction!?
11-08-2007 | 02:49 PM
#91
JK Enthusiast
Joined: Jun 2007
Posts: 208
Likes: 0
From: Gilbert, AZ
Mileage
Is that all city driving? I have an Unlimited Rubi manual with 5.13's and 35's and I get 15 mpg with a combination city and highway driving.
11-08-2007 | 03:13 PM
#93
JK Enthusiast
Joined: Jun 2007
Posts: 208
Likes: 0
From: Gilbert, AZ
Error codes and not needing a reader
My speedo is not off more than 2 or 3 mph, according to the GPS. So 9 mpg is not wrong by more than a few percent at most. I would be most interested in getting this tool for the error codes and hopefully some future updates might let it improve my shift program.
The dealer told me that if there is anything wrong that could be affecting the mileage, like mixture or something, there would be error codes and a check engine light. I've never had either.
The dealer told me that if there is anything wrong that could be affecting the mileage, like mixture or something, there would be error codes and a check engine light. I've never had either.
Brian,
Take your ignition key and turn it off/ on/ off three times. The final time leaving the ignition in the "on" position the odometer area will then display 6 dashes. Wait a couple seconds. No faults the word "d0nE" will be displayed. I am not joking this actually does work. A friend told me about it works on his Dodge truck and on my Jeep.
11-08-2007 | 03:32 PM
#95
Former Vendor
Joined: Apr 2007
Posts: 3,621
Likes: 1
From: nowhere
Brian,
Take your ignition key and turn it off/ on/ off three times. The final time leaving the ignition in the "on" position the odometer area will then display 6 dashes. Wait a couple seconds. No faults the word "d0nE" will be displayed. I am not joking this actually does work. A friend told me about it works on his Dodge truck and on my Jeep.
Take your ignition key and turn it off/ on/ off three times. The final time leaving the ignition in the "on" position the odometer area will then display 6 dashes. Wait a couple seconds. No faults the word "d0nE" will be displayed. I am not joking this actually does work. A friend told me about it works on his Dodge truck and on my Jeep.
11-08-2007 | 03:33 PM
#96
Former Vendor
Joined: Apr 2007
Posts: 3,621
Likes: 1
From: nowhere
You may have something with the shift points, especially since I'd figure a manual with the same gearing to get worse mileage in the lower gears, because they're lower than the automatic gears.
11-08-2007 | 03:41 PM
#97
JK Super Freak
Joined: Jun 2007
Posts: 1,350
Likes: 2
From: North East Kingdom, Vermont
Jeeze, I have an '89 F/S Bronco, with a 351w, auto, 33's and what ever gears it came with, and it does better than 10, not much, but a little better.
12-27-2013 | 10:52 AM
#100
JK Newbie
Joined: Dec 2013
Posts: 73
Likes: 0
From: NY
what gear ratio
sorry i have my flashcal in hand, and dont have time to read thru the whole thread. i have manual transmission with 35 inch tires. ive heard 4.56 gear ratio was correct . did i miss something?