need to improve MPG. need more ideas

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Sep 30, 2011 | 02:59 PM

rtralabama

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CF Veteran

Joined: Aug 2010

Posts: 1,678

Likes: 0

From: Carlisle, PA

Year: 2000

Model: Cherokee

Engine: Inline 6

need to improve MPG. need more ideas

I'm getting around 9-12 on my jeep. I just replaced all 4 02 sensors and haven't even noticed a difference in fuel consumption. What else can I go? Upgrade fuel injnectors? Air intake? Throttle body?

Its a 2000 XJ 4" on 32s.

Sep 30, 2011 | 03:00 PM

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

Likes: 38

From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

last tune up was????? tire size and gear ratio play into gas mileage also.

Sep 30, 2011 | 03:02 PM

tjwalker

CF Veteran

Joined: Nov 2010

Posts: 5,841

Likes: 117

From: In the middle of Minnesota!

Year: 1999

Model: Cherokee

Engine: 4.0

Is this "calculated" gas mileage? Miles driven divided by gallons consumed. Get at least three samples before coming to any conclusions. Factor for 32" tires.

With a 2000, you have no wires, cap, rotor but fresh NGK Copper plugs not a bad idea. Gap to .035