Originally Posted by Siesta
An earlier post alluded to sidewall cracking and that RV tires sit loaded for long periods of time in one position. I know its not practical for the big 'A's, but I took the trouble to put my axles on jack stands (4 of course) and unloaded the tires for our long 5-6 months of winter - no stress, and no flat spots. I think this must add years to tires, but I'm a relative newbie and time will tell....just seems common sense if doable.
Again, not being a tire expert I guess you can say this is my opinion. It's not just the flat spots. That is one important consideration, but it's also the environment. Sunlight will degrade tires, moisture can degrade tires. If the sidewall is cracking, then those tires are LONG past replacement time. Exercising a tire (running it) occasionally is an excellent practice as this flexes the sidewalls. I guess somehow this helps to re-align the fibers in the tires(???)
Also, very few of us with MHs can put them up on jacks. Only those with relatively small coaches can do this. Plus, what can happen to the MH chassis if this is done??? Again, the chassis experts would have to chime in here.