OBD should read a code but if not then I'm stumped. That's a drastic change in mpg. Somebody on here should know. I'm getting about 18 with my 2016 JKU on 35s. It's got 3.71 gears. I'm doing about 2k rpms at 70 mph. Right in the green zone. I'm honestly stumped. Keep searching for answers. 👍

 

Help ! Help ! I have been hijacked ! LOL Its all good, just kidding. Got good info from all of you, thank you again and happy trails to all !!!

 

Sorry for my part in that. I seem to have a talent for that sort of thing. I'm glad to have this collective to toss my problems among to get thoughts from those who really know these machines. I count on them to help me nurse an old high miles beast along. I know a Jeep would generally make a better secondary or just for fun stuff ride than a daily driver but for now my reality is driving a thirsty, old, well worn JKU for all my transportation needs.

 

Thank you again for all the info. Found a great jeep for my daughter in law. Mint condition 2015 Wrangler sport unlimited bone stock with only a back up camera added, with only 35k on it. Jumped on it jeeps like that go quick. Hopefully my last trip to Northern Virginia. As they say if you know you know.

 

Thank you again for all the info. Found a great jeep for my daughter in law. Mint condition 2015 Wrangler sport unlimited bone stock with only a back up camera added, with only 35k on it. Jumped on it jeeps like that go quick. Hopefully my last trip to Northern Virginia. As they say if you know you know.

Big congrats! 2015, is rated as the best and most reliable Wrangler.

 

Moderator Note: This thread was last reviewed in August of 2025 and has valid, up-to-date advice and information.