What to inspect before long trip?

[kk2002s]

Take Serpentine belt off and check all pulleys for any signs of wear especially the water pump and alternator

Spare Fuel pump relay. I would never have thought of this except I had one go bad and it shuts you down. Cheap part, I bought spare to carry with me all the time
I had made a jumper cable to diagnose and I carry that as well so I can jump relays

I brought spare AOS on long trip with hose clamp pliers. I don't know how I would do this on the side of the road but at least I had the option

Fix-a-flat
scissor jack
Bentley manual

a Trailer to carry everything
a support car to follow you

Typically I find when you bring all this stuff, you don't need it. Better safe then sorry

Good luck and enjoy