Rubicon gas mileage

[symco]

The Rubicon's gas mileage is lower partly because of the 4:10 gear ratio. What size larger tires would give it a final gear ratio similar to the 3:45 axle?

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[FUHL]

35" tire.

 

[FUHL]

The Rubicon also weighs more. Bigger tires add weight also.

 

[ormandj]

I can tell you with 315s/35s in a JLUR 2.0, you'll still get worse mileage than a sport. Gearing isn't the only variable as mentioned above. I get 17-20 HWY and 14-16 City.

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