Real question is stored how long? We store Marianne's convertible in the garage for the winter every year. I just put STA-BIL in the fuel tank and disconnect the battery. Longer than that I might consider draining the fuel tank and jack stands. I would not drain other fluids but probably plan on changing some of them upon return to service. You should also prevent critters from making a home in a stored vehicle.
Speski OffRoad LTD, Cargo Solutions for Toyota 4x4's http://www.SpeskiOffRoad.com
"80 series, with a fridge"
1976 FJ40, Project with little progress.
2004 Starcraft 10RT