The screen in front of the radiator is good anywhere. Bugs brush off with the snowbrush instead of clogging the radiator. Since the North is the land of the midnight sun, headlights don't get used much. Covered mine with bubble wrap.
Carry a spare oil filter, fuel filter, belt, extra oil, brake fluid, steering fluid, fuses for TV & trailer, whatever is needed to change a tire yourself, a tow rope, a compressor is handy & a throrough service before you leave.
You are not going to the dark side of the moon but there are some remote places with no cell service (imagine that!) so help is not a call & credit card number away. A fully stocked auto supply store is not in the next town, if there is a next town. A little selfsufficiency goes a long way.