Engine/Performance Mods
JK Junkie
Joined: Jun 2007
Posts: 2,467
Likes: 1
From: 4 Corners
I'll say it since no has yet. 
Its a Jeep. It's not going to get great fuel mileage.
I would not jump to trust the computer for the mpg, if that is what you are using for your figures. It is better to compute it yourself by miles / gallons used and do it a couple of times. It will be the average of all your driving, and that to me is more realistic.
I do get better mileage from high octane fuel, but not enough to warrant the price differences.
The best thing that I did was getting the Superchips flasher. I see about a 2 mpg increase with it, and some increase in performance. Very happy with it.
Its a Jeep. It's not going to get great fuel mileage.I would not jump to trust the computer for the mpg, if that is what you are using for your figures. It is better to compute it yourself by miles / gallons used and do it a couple of times. It will be the average of all your driving, and that to me is more realistic.
I do get better mileage from high octane fuel, but not enough to warrant the price differences.
The best thing that I did was getting the Superchips flasher. I see about a 2 mpg increase with it, and some increase in performance. Very happy with it.
JK Jedi Master
Joined: Feb 2008
Posts: 12,907
Likes: 185
From: Maine
Not a significent help, as the front end is still turning.