Question about 2002 Jeep Liberty

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Lousy gas mileage - 2002 Jeep Liberty

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Hi chazbike,
 There might be millions of ways :)
DO NOT put high test in it!! and Good Luck to find 95 octane in the US short of an airport. High octane fuel burns slower and so less power and mileage!!
You have a VERY large difference in city and highway. First, evalutate your driving conditions. Heavy Foot? No..
Good, you must have a LOT of stop and go driving, can you find a route with less stops?
What rear axle ratio do you have? The numerically lower the slower the engine turns and better gas milage...to a point, then you pass the point, where your mileage gets worse due to engine lug.
Want to gently try? See if you can beg borrow or steal. (Kidding) a LITTLE larger set of tires for the rear and DO NOT engage 4x4 drive. See if it helps. Be aware though to try this, you must change the drive gear for your speedometer or at the end of the week or tank, calculate the difference in diameter and adjust the miles traveled to equalize.


Few other you may try :)
he cheapest way to increase gas milage besides what is already listed is to get a throttle body spacer, they cost around $50-$70 dpeneding on the seller, and it increases gas mileage by 2-3 mpg, it also increases hp and tq.

I hope this would help you.
Any further help, let me know.
Thanks for using Fixya.
DO RATE THIS AS "FIXYA"

Posted on Apr 15, 2009

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