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Fuel Mileage - Jeep Wrangler Rubicon - Xtreme Recon Edition

Paluss

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2018 JLUR steel bumpers, been running 35s since 500 miles I have 51K miles now ECU recalibrated for 35s, I average 18.5 combined driving and 21.7 highway at 65-70 (wind can also be a factor) I use cruise 99%, I was getting closer to 23 mph highway with 33s. The mileage may have increased .5, otherwise its the same tank after tank of regular shell 87...:):)
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roaniecowpony

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Best fuel economy I got with my 3.6 no-E JLUR on OEM 33s was in the height of the pandemic when I never pushed the skinny pedal down for over a month. One tank lasted 2 months. Battery was dead. But that was a small price compared to all that gas. I'm thinking the more I park it, the more savings and more fun... So, how long have you gone between refills?
 

Slippery Pete

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I'm at 19.3 with 500 miles in my 2.0 Willys XR with mixed driving (hills, freeway, city, rural).
EDIT: Sorry, just realized this is for Rubicons.
 
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Jtphoto

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9,000klm running 32psi (to keep TPMS happy) 17-19mpg depending how fast I choose to drive. Mileage has increased as I get more kilometers on it.
realistically even 32psi is too high for 35” tires. The amount of fuel saved by running higher tire pressure will never overcome the cost of prematurely replacing tires due to expedited tire wear caused by running pressure too high. The bonus of dropping the pressure is nicer ride too.
Doing a chalk test on your tires will put you in the 26-28 psi range for proper wear on a 35” for a 4dr Wrangler. Manufactures only post higher pressure on the door jam for epa mileage.
 

El Zilcho

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Not XR but same tires and similar lift on 2L JLU. With sport axles, Rubicon suspension and 285 KO2s 2k mile trip last year from San Diego to Moab with stop at Sedona and back I got a bit more than 23mpg. This year on a similar trip with Rubicon axles, 315 KO2s, 2" lift and different fenders (less aerodynamic) I got 19mpg and it was a struggle. Actually with everything else been equal, 2" lift reduced fuel economy by more than 1mpg. Before lift I could easily get 20+, after lift I struggle to get 19 highway.
 

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Super

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I can average 24mpg highway if I'm doing 55-65mph and not aggressive. Overall average MPG is 19-20mpg. 3.6l Engine.
 

XtremeRetard

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Never seen better than 20mpg. But have steel bumpers and winch.
Best MPG is under 70mph and I run 40+ PSI in tires which helps.
Thats mostly highway miles.

Usually its around 18 mixed driving, city, highway and offroad.
 

pfletcher229648

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"Jeep Wrangler Rubicon Xtreme Recon Edition"

LOL, is there a longer name for a vehicle out there?
If it’s my 4 door, then it’s a “2022 Jeep Wrangler Unlimited Rubicon Xtreme Recon Edition with Sky One Touch Top”
 

pfletcher229648

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I can average 24mpg highway if I'm doing 55-65mph and not aggressive. Overall average MPG is 19-20mpg. 3.6l Engine.
Must be those nitrogen filled tires.
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