Hi,
What kinds of things do you intend to fix, and what can wait until after you get home? I have the socket to remove my tires, and recommend the same, even if you do not have a spare, it is required for any tow truck showing up. Sure it would be rare that they would not have one, but who knows? You might get a flat in the middle of noplace, and have someone need it to install your tire for you.
Volt meter for sure. If it is hot, and you are in a 30 amp campground, you need to check the voltage all the time, so a plug in meter too. If it dips below 105 volts, either shut off the A/C or plug in a "Autoformer" or other voltage booster.
Some wire, connections, spare interior light bulbs, comet.
Spread comet around the tires if you find ants trying to get in.
Pliers, adjustable wrench, adapter for a drill to move the jacks up and down if you have a travel trailer.
Flashlight, rechargable batteries and charger. Ryobi makes a really nice 18 volt flashlight that works with their drills and other 18 volt things. They also make some compact 4 volt that fits in a pocket.
Spare fuel filter if a diesel, you can get a tank of bad fuel and quickly plug a new filter.
Most other spare parts can be found in the towns that you are traveling through.
Fred.
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