Now you have a little bit of work ahead of you to make sure it stays running good.
Those CRD's are known for gunking up the MAP sensor which will kill your power and mileage. You might want to vent the CCV to the atmosphere to stop that problem. Also the EGR tends to get really dirty and will definitely need a cleaning.
Here's some required reading..
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54207
You'll also wanna stick to high volume stations to lower your chance of getting crappy fuel (Diesel contaminated with water)