Hello!
I inherited a 2006 Jeep Liberty CRD when I married my wife (great choice wife). I have grown to love it. It has its quirks (tranny likes to jolt @ 35mph shift point, CEL comes and goes seemingly for no reason) but the power and mileage I get are awesome. I just hit 94k miles and am looking into doing the timing belt myself.

So far I have
-replaced fuel filter/pump assembly (just died one morning and was leaking)
-cleaned the MAP sensor (wow the reduction in turbo lag and improved throttle response was amazing)
-changed oil in both diffs, xfer case, and engine

I get 25mpg highway @ 70mph. Is this the best I should expect without an ecotune or any mods (egr etc)?

I thought Id join this site as this is one of those cars that requires a lot of maintenance to reap the rewards and there is a ton of useful information here. And I love working on cars.

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2006 CRD Stock with ORM and a clean MAP (always)

Howdy - welcome to LOST

read the Noob guide - lots of good info
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54207

and I'm glad you like to work on cars - because most mechanics don't know CRD's exist
Dealerships are especially clueless - and they charge a lot of money to play.

for better mileage check out GDE - although you have the aerodynamics of a Box - so 65 is better than 70
http://www.greendieselengineering.com/goPage.do?method=home

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2005 CRD
stuff
Skeptic quod gratis asseritur, gratis negatur