tips for better mpg
Seasoned Member
Joined: Dec 2009
Posts: 460
Likes: 1
From: Colorado Springs, CO
Year: 2001
Model: Cherokee
Engine: 4.0L
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Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Holy shift points Batman!!! I just did this and took a little spin around the block, I am very surprised at the results of this... How often should this be reset? I'm thinking of just adding this to my oil change check list.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Maybe not that often, but it makes a difference, huh?
Senior Member
Joined: Jan 2012
Posts: 1,001
Likes: 0
From: Memphis tenn
Year: 88
Model: Cherokee
Engine: i6 4.0
I recently had exhaust work done at the dealership and pretty confident they put in a new downstream 02 sensor in the new cat I received. My question is, is it important to have matching 02 sensors? Both the same Brand? Or can I just buy any Upstream one I want (I know to still buy a quality piece).
So how well did the iat relocation work
Senior Member
Joined: Jan 2012
Posts: 1,001
Likes: 0
From: Memphis tenn
Year: 88
Model: Cherokee
Engine: i6 4.0
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Both mine are/were completely stock, I don't "seafoam", use special, mystical Amsoil lubricants, magic $25 spark plugs or non-spec fuel injectors either, lol.
I'd love to see 22 mpg on the highway. Neither my 99 or my 96 would cross 20mpg highway no matter how grannylike I drive. 14-15 city 19-20 hwy pretty consistently. What's your secret?
I'd love to see 22 mpg on the highway. Neither my 99 or my 96 would cross 20mpg highway no matter how grannylike I drive. 14-15 city 19-20 hwy pretty consistently. What's your secret?
CF Veteran
Joined: Feb 2012
Posts: 1,206
Likes: 2
From: Southern Oregon
Year: 1990
Model: Cherokee
Engine: 4.0
Both mine are/were completely stock, I don't "seafoam", use special, mystical Amsoil lubricants, magic $25 spark plugs or non-spec fuel injectors either, lol.
I'd love to see 22 mpg on the highway. Neither my 99 or my 96 would cross 20mpg highway no matter how grannylike I drive. 14-15 city 19-20 hwy pretty consistently. What's your secret?


