I recently had a concrete parking pad poured for my motorhome. One of my camping buddies told me not to park directly on the concrete, but to place plywood down. The concrete seems to react with the tires. Does anyone know anything about this?
One thing that you should consider is flat spotting. Tires can develop a flat spot from sitting for long periods of time. the only way to avoid it is to jack up the rv and support it on jack stands so that all the weight is off the tires.
Depends on how long you're gonna store it. If your motorhome is gonna be in storage for 5 or 6 mos, it's a good idea to take the weight off of the tires. I'd use the heavy duty jack stands. I think they're commonly available in 3 ton and 6 ton models. Most people don't do it, because it's a lot of trouble.