I've taken my ST on several trips of over 1k miles over the time I've had my 02 4x2. Besides keeping my Trac regularly maintained (it was my daily driver when I made those trips) I haven't done any special maintenance for any of these trips and my Trac hasn't had any problems with my "throw my gear in the back and ride off into the sunset" approach :grin: :grin:
If my 02 can hack it, I have confidence in your 04 :supercool:
I do have a spare set of spark plug wires, an ignition coil (since I upgraded mine and heard bad things, though I've had no issues) and tube to rig up a PCV elbow replacement if mine were to break on me again stashed in the Trac, in the event that I need em.
One thing I might suggest is that if you have any interest in using the much-talked about-here XCal to tune your ST, and you haven't done it yet, that you do it for the trip. I wanted to buy one back on my biggest ST roadtrip back in 2010, but I'd spent my "trac money" on the requisite suspension upgrades soI didn't know if I'd have enough to cover all my trip expenses if I bought the XCal then. I bought it shortly after I got back from the trip and have been kicking myself for not doing it before-hand. The mild improvements in MPG and the bigger improvement in driving fun (IMO) would have been much appreciated by me on the long legs of my trip. :driving: