winter storage

mistermoe

I am going to store my z in the next few weeks for a period of 4 months in a non heated private garage and I am wondering if my plan listed below is fine or if I should do something else

1) change the oil
2) top tank and put stabilizer
3) increase tire pressure to 40/42 psi
4) drive car for 30 mins
5) wash/clean/wax car
6) clean underside of the car
7) hook up battery to battery tender

should I put rubber/carpet mats under my tires? should I leave a window partially down for air?

This is the first time I store a car soo I am worrying a bit about doing it right/wrong.

Cheers