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May 14, 2011 | 04:05 PM

Nperryman

Thread Starter

CF Veteran

Joined: Dec 2010

Posts: 1,246

Likes: 1

From: Missouri

Year: 1998

Model: Cherokee

Engine: I6 4.0 L

help

Okay I know this thread has been done before. I know it depends on how you drive, but on average howmuch mpg do you lose on average by switching from 235/75/15 tires to 31" tires? Will it be a big difference?

May 14, 2011 | 11:53 PM

Jmb94

CF Veteran

Joined: Mar 2011

Posts: 1,423

Likes: 0

From: Owensville, MO

Year: 1998

Model: Grand Cherokee

Engine: 5.9

Depends entirely on how you adjust your driving habits. what are you getting now?

May 15, 2011 | 10:03 AM

Nperryman

Thread Starter

CF Veteran

Joined: Dec 2010

Posts: 1,246

Likes: 1

From: Missouri

Year: 1998

Model: Cherokee

Engine: I6 4.0 L

Quote:

Originally Posted by Jmb94

Depends entirely on how you adjust your driving habits. what are you getting now?

I'm getting around 17 mpg

May 15, 2011 | 10:12 AM

HighRoller

Senior Member

Joined: Nov 2010

Posts: 511

Likes: 3

From: Chadbourn, NC

Year: 88, 89, 93 & 99

Model: Cherokee

Engine: 4.0

I'm getting 19 sitting stock with 31's on my '93.

May 15, 2011 | 03:30 PM

peep

CF Veteran

Joined: Oct 2010

Posts: 2,150

Likes: 12

From: Ontario, Canada

Year: 1989 Laredo

Model: Cherokee

Engine: 4.0 L 6 Renix

17.5 mpg (usgal) 3.5 up on 31's, 4.0L daily driver at 505000 km.

May 15, 2011 | 04:20 PM

Nperryman

Thread Starter

CF Veteran

Joined: Dec 2010

Posts: 1,246

Likes: 1

From: Missouri

Year: 1998

Model: Cherokee

Engine: I6 4.0 L

Doesn't the lift have a bit to do with it too because it makes it less aerodynamic?

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