Congratulations Eric! I bought my ED from OC Chrysler Jeep Dodge Ram, but it's on order so you beat me! I'm guessing that the truck is brand new with less than a hundred miles on it - if that?! Anyway DEF fluid is supposed to be good for 10K (probably w/out towing). Point is if you have next to now miles on the truck, then the dealer should top off the DEF for you.