we had an 07 jgc limited 3.0L diesel. Was a great vehicle, traded it in 2014 for a 3.6L jeep. it had 70K on it.

Had 2 problems, roof rack mount leaked (fixed quickly) and I had to do an alternator at 60K miles. not a fun job, but not hard, but OMG expensive. the problem there, is the oil fill tube is directly over the alternator. They since did a recall to install a shield.

Mileage was very good, although it was craving another gear.