Rubicon fuel economy (3.6L manual transmission)?

[Badweissenbier]

Stock setup 2018 jlur 3.6 manual And I average 18-18.5 with mixed driving

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[Jabarsetti]

I've gotten as good as 23mpg 2" lift/35's through the mountains here is CO. I avg 17 city. Did a long road trip through the Tx/OK panhandle to OKC and avg 16.5.. Kind of all over the place, but I would say normally day-day I get about 17mpg, mostly short trips as I only live about 7 mi from my work. last winter (stock) I would get about 16.5mpg I chaulked it up winter gas and using the HVAC more often. Another thing to consider I hardly almost never use A/C during the summer. MPG is very subjective, try adjusting your your driving habits and A/C usage. I understand (born and raised Iowan) being in the Midwest you do have to deal with the Humidity and rolling hills a lot more.

 

[Tdurden032]

How many miles do you have? The engine may not be fully broken in yet.

That’s something I hadn’t thought much about, but I have less than 3k on the clock - Covid showed up, the outdoor parks closed and our travel plans have been decimated... maybe it’s still getting warmed up?

 

[MUD-H2O]

I have a stock Rubicon and get about 16. If I go on a trip and drive mostly highways, I can get about 20.

 

[bboyk]

When I first got my Rubicon, I was getting 15 -16 mpg while learning the best gearing at different speeds. I have 37" tires / 3 inch lift / steel bumpers and a winch. Mostly city driving with some highway.
This past 6 months, I have raised the to over 19 mpg.
Remember, this vehicle is not meant for fast acceleration. That was part of my problem.
I have found shifting best at these speeds.
1st: get started and immediately go to 2nd.
2nd: 11 - 23 mph
3rd: 23 - 40mph. Be lite on the gas as you increase the mileage and should get 18- 22 mpg.
4th: 40 - 62 mph. I can get great mileage in this range... 25 - 35 mpg
I get passed through 3rd gear, but so what. As a popular sticker states..."If it was meant to go fast, it wouldn't be shaped like a brick".

I've enjoyed monitoring the mpg. I haven't had a car that shows mpg real-time on the main screen.

 

[MarkY3130]

Here’s the last 6 months on mine. 3.5” lift, skid plates, step sliders, winch, etc etc. 3.6 with 6sp and 4.88 gears. Denver area

 

[jayteal]

Stock Rubi at 29k miles, steel bumpers and using 89 octane: 18mpg in the city and 20ish on highway. Averaged 22mpg over 5 weeks in Colorado earlier this summer. I'll take that everyday when driving a box on wheels.

 

[Rdmitch]

average 20 ish
and yes i know the ABS lights are on....i took the picture to send to the service mbe at my dealership

 

[Rubi]

That’s something I hadn’t thought much about, but I have less than 3k on the clock - Covid showed up, the outdoor parks closed and our travel plans have been decimated... maybe it’s still getting warmed up?

It's possible the engine may still be a little tight. I was seeing improvements, slight, up to around 5K.

 

[Tdurden032]

It's possible the engine may still be a little tight. I was seeing improvements, slight, up to around 5K.

Good to hear - I try to keep things in perspective - I do drive a streamline safe after all...