RyanH wrote:...take a case of Mobile 1 along and do a quick oil change before the drive home (is that overkill?).
Yes. I'm sure you'll get lots of differing responses, but a 6 or 7k round trip, all highway, isn't going to stress your oil anywhere near what stop and go city driving and short local trips will do. I've driven from Seattle (Olympia actually) to D.C. and back numerous times in various Alfa's that I was very much into at the time, as well as my diesel pickup (diesel being a dirtier runing motor), and I never bothered with mid-trip changes. Do it before you leave, and don't worry about it until you get back. As for the other stuff, like bushings and shocks and all that....well, is it broke currently? People who generally haven't done may long trips tend to be more worried about it than they need to. If your car is in good running condition, simply driving a long distance isn't suddenly going to thrash your bushings or shocks. Same with fluids. Unless their due for a change anyway, I never bother.
RyanH wrote: What else do you all do when planning for a long drive like this?
My trips are through the north, usually in the cold. Trying to adjust a dual point distributor in a '71 Alfa Berlina in Februay in the dark, under a street light behind a bowling alley in Montana requires different preparation then driving through Texas in the fall. That being said, think about what could stop you right where you are versus what would be annoying but not impede progress. Bad shock --> annoying, but you'll be ok. Blown radiator hose --> you're dead in the water. Lots of places along your route where you don't want to be broken down.Personally, I'd take a basic tool kit, extra belts, extra hoses (or replace them and take your old ones as spares), gotta have duct tape, some gasket sealant, a jug of antifreeze, a jug of water, a blanket, a basic first aid kit, and a cell phone. I would also get under the car before the trip and check for any leaks. Things like dripping transmission lines/hoses can be a bummer in the middle of nowhere. What you take depends on how comfortable you are with your own abilities. Adjusting those points in Montana sucked, but I knew it was something I could do so I didn't really sweat it. Your experiences may be different, in which case your list of supplies will be too.Good luck.