SOURCE: poor gas mileage on my jeep liberty
Did this happen overnight or was it a gradual loss? Did you do any kind
of repair before you lost the gas mialage? Is there a check engine
light on or did it come on and go off? Did anything weird happen before
the jeep got bad gas mileage? It's hard to diagnose a problem like this
without actually touching the car.
Any other info might help me steer you in the right direction.
SOURCE: jeep liberty gas mileage
when was the last time you put in fuel injector cleaner? I put in Lucas Oil Injector cleaner every other or every oil change.
There are alot of factors affecting your gas mileage. Tire wear, tire pressure, wheel alignment, air filter, fuel filter, spark plugs, oxygen sensors, just to name a few. So to say what you need is just shooting in the dark without more information. I would probably start with your oxygen sensors, and then perform a tuneup. If your vehicle pulls to one side or the other when driving on the highway you need to stop into the shop for a wheel alignment.
SOURCE: jeep liberty gas mileage
You might also want to vary where you buy your gas. I lost approx. 5 - 6 miles per gallon (translates to over 100 miles less per tank) earlier this year. After conducting a bit of an experiment I realized it was only when I bought gas from one particular distributor (Spinx). I have since stopped filling up at all Spinx stations and my mileage has returned to it's previous level.
SOURCE: Gas Mileage on a 2008 Jeep Liberty
I also own a 2008 Jeep liberty and get close to 200 miles per half tank I know I can get close to 380 miles and my gas light comes on.
1 other thing to consider is does it have 4 wheel drive and if so what version?
I have a part time 4 wheel drive so I only engage it when I am in bad weather snow, ice, ect. or if I go off road. My system is not designed to be in 4 wheel mode on dry roads.
If you have a full time 4 wheel or all wheel drive model that will definitely eat up more gas as the engine has to work more to pull and push all 4 wheels all the time.
Not a total solution but I hope it helps give more insight!
Best of luck,
Joe
SOURCE: Better engine performance and gas mileage
try either a cold air intake or a chevron....a chevron is a cylinder with slots cut like arrow heads which will remove air turbulence....that alone will increase your performance at least 25% and horse power about another 40 to 50.
go0od luck
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