Storing a car.

[Gar]

Full tank is advised ,prevents condensation forming apparently

Wheels could be a problem as your tyres could be ruined from flat spots by the time you get back of its not moved regularly even if you over inflate them they could still get flat spots over time

A few of them little moisture catchers are worth throwing into the car too

Wheels off and on axle stands? Be odd but I can't think of another way off the top of my head?

Then you have pressure on all the suspension hanging down though