If you look at your owner's manual, warranty information and maintenance logbook for the 2003 and I assume for the 04 as well, the maintenance log requires that servicing dealer doing the maintenance for schedule "A" or "B" fill in the odometer reading, date, repair order number, sign and stamp the page in the logbook for the service work done as well as attach a portion of the logbook page to the repair order. Now, if you are a do it yourself oil change guy (or girl, no slight intended) or if you buy your filters and oil and drive your truck on down to Wally World to let them change it, how do you get your log book filled out by a certified DC dealer? The book claims that failure to keep you log book current could result in the warranty coverage being dropped. What's the secret? How do you prove that you changed the oil and filter at 7500 miles, 15,000, etc. etc. , if you did the work or had Wally World change your oil and look at the fluid levels and inspect the hoses? I have had a couple of Dodge Rams in the past and I never had a maintenance logbook to fill out. I just kept copies of all service related work done in a file and figured that any question about maintenance could be addressed by the file.