One a month would suffice. Run it for about 20 min and heat up the inside too.

Paulnold, sounds like you are doing the exact same storage as I am to my Bonnie.
I'm storing it outback tucked in by the house on the cement.

I stored it for 3 months last winter (while I was away).

Here was my checklist....
-made sure the gas tank was full
-added treatment to the gas
-put arm & hammer baking soda in bowls (help prevent moisture) & air fresheners
-put a car cover over her, and a tarp
-oil & lube one week before
-had her professionally cleaned (carpets and detailing), the day before
-I decided to leave the tires on her, because I heard that if you put her up, that the springs will extend and could rust
-had her started for 20mins every 2 weeks (via remote starter)
-this year I might invest in junked rims and tires, because she'* being stored for 6 months
-took everything out of the car I could, stereo, mats, electronics, papers etc

Anyone have anymore tips?

And work it through the gears a few times each time, too. Keeps the seals/passages ship-shape.

Which one are you storing?

The SSE...shes a classic...worth storing

Correct Jim!

The 91 has seen enough winters.... she'* got a fresh coat of paint done in the spring and I don't want any salt to touch it.

The 97 isn't modded yet, and I honestly don't feel the dying need to wash it everyday yet.... keyword = yet. But she will be getting the 91'* old steel rims and winter tires. Along with some heated seats and remoter starter to prep her for winter.

Thanks for the info dude ,im going to use the bowl of baking soda and also the gas treatment,she could use and interior cleaning as well .Wow do you mess around when it comes to taking care of your cars dude,guess i dont blame ya they are a big investment

Wish I could. Mine'* gonna be our only car here soon...

If I was gonna leave it sitting idle for a few months,outside in the cold crappy weather I'd jack 'er up and put 'er on blocks (on the frame). That takes off weight from the tires, shocks, springs etc.....spray 'em with WD40 if your worried about rust.

Bold text below shows conflicting positions. Any gurus have more info on this particular isse?