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Would a tune or gear change help bad MPG with 35 inch tires?

Jeeperjamie

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tysongladiator

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Limp mode want allow you to go past 40mph, how were you driving 60 in limp mode just curious. 19mpgs on 35's and 3.73 gears, you would be the first to report that.
I had to edit the Mpg. I meant to say 17mpg again. I got 19mpg once when I had my first set of wheels. 295/70-18s. But, we were only going about 55mph. Had another friend with the death wobble so bad and someone had to stay with him.

Apparently, I'm the recovery and assistance vehicle for everybody😭
 

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Im got all combined mpg of 18.6 in my 200 miles with 37 AT’s and 4.10 gears on account of the Pulsar, down 3mpg from stock tire. So basically, pulsar put me at stock mpg on the 37’s.
 

Jonny A

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3:73 are not the right gearing for 35" if your interested in milage.
Regear.
This is the main reason I opted for the Max Tow option. 4:10 gears so I could easily run 35's. I've seen very little milage drop. 19 city and as high as 20 highway if I stay under 65 MPH
IU am on par with you. 35"s and 4.10 gearing
 

Helryd68

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Not sure, I'm using the JScan I didn't have the dealership flash mine. Is yours a Max Tow or Rubicon because it seems like that matters. Also my 35's only weigh 63lbs a piece and I'm running my stock steely wheels. 4.10 on a 8spd should be plenty for 35's.
I have the rubicon, Rockstar wheels and General Grabber 35’s
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