下面是google 到的，楼上说的断开电瓶很重要
Long-term car storage (3 months or more)
Planning on keeping your car in hibernation for longer than a season? If you’re looking to store your car for 3 months or more, make sure to do all of the above, along with these extra steps:
- Add engine stabilizer to the gas tank. It absorbs moisture and prevents gum and varnish from degrading the gas. Once you add it, fill the tank with gas and give it a spin to help the stabilizer mix in.
- Cover and protect. From the wheel wells to the engine blocks to exhausts, cover any holes and gaps to prevent critters from setting up shop.
- Raise the windshield wipers. Keeping them off the glass will prevent them from sticking or marking up the windshield.
- Condition, condition, condition. Go over every piece of leather and vinyl upholstery with a good conditioning treatment to avoid cracking and/or fading.
- Adjust (or remove) insurance. Speak to your insurance company to see if there are any opportunities for you to lower your rates while your car is in storage.