回复：长期不开的车，多少时间开一次比较好？ 一个月？

The only concern is battery.  if you connect a battery maintainer to the battery, you can leave it for a year no problem assuming you are going for a long trip.  modern rubber/seals does not demand periodic oiling as old did.

when you come back after extended time, say one year, make sure change oil before driving.