I've suspended the insurance on my Volvo 240 DL (1990) manual transmission for the next 6 months. Before garaging it, I've:

- changed the oil
- put Sta-Bil fuel stabilizer in the gas
- washed the car
- put blocks behind the wheels and released the parking brake and put the car in neutral
- plan to roll the car about ~1-2' backward or forward each month to avoid flat spots in the Michelin tires
- disconnect the battery; about every 2 months I'll charge it for a few minutes

I was also thinking of adding air to the tires, but not sure what pressure to use. They normally have ~33 PSI.

I don't plan to start the car during this time to avoid moisture buildup in the exhaust system.

Anything else I should do prior to garaging it, or over the 6 months?

Thanks!