What type of tires do you have? Tire weight is a big factor in mileage. Also tire size. Another big one is how fast you drive. The jeep is as aerodynamic as a brick. There is a significant mpg difference between 65 and 75. When I cruise 85 the mileage is down towards 12mpg...so I don't cruise 85 in my jeep
I own a 2001 TJ 4.0 5spd, bought it at the end of last summer. I did my homework prior to purchasing, and KNEW that it was a pig on fuel but I bought one anyway. To the OP: If your having buyer remorse, you may as well just sell it. Its unfortunate that alot of people don't do there homework on a vehicle they intend to purchase in the future. As per the other posts on this thread, its a brick, lifts and bigger tires work against you for MPG. I don't mean to come down on ya but really, please do your homework.
I use a viper throttle body with a larger air intake(k&n). Autotran shifts a-lot less. 20 mpg is easy on the hwy.
That's the answer I'm looking for haha, I had a 93 silverodo with the 350 8 cylinder soo the jeep is a upgrade no matter what haha. I was getting 18 today doing 60-65 on cruse. The truck was on a good day 13-14mpg.
New member here with a new 13 wrangler sport. The fuel mileage is better than expected. I knew going in that it is what it is, but I also didnt want horrible mileage. I have an automatic with 3.21 gears and standard tires. That setup can get pretty reasonable mileage and suits me fine. But this is an enthusiast site and most probably run deep gears and big tires. That is going to really hurt the mileage. Like most things it is a compromise. If you dont use the rear seat you can remove that and remove the spare when not offroad. Those two items will get rid of a lot of weight and help mileage.
Drove Houston to Dallas last week, 75 mp speed limit mostly, got mostly 20 mpg until traffic slowed to 60 mph, then it went up to 21.2 until I got off the freeway. Some city driving and back down to 17. On a good day with a tail wind my Willys gets 17, but mostly 13-15.
Build it, drive it.
2012 gecko green Wrangler.
1961 Willys Overland 4x4 Wagon, restomod.
12 JK 2dr, manual, 2.5" lift, 35 MT ATZ's...
New to this Jeep (had one before, so didn't expect anything great), been pushing around 14.7 with stop and go traffic in Houston (it goes up a few decimals if I can hit the freeway with no traffic). AND I try to accelerate as slow as possible.
I may throw a party if I ever get to 15 mpg. Wooohoooo!