tire maintenance

I am currently on my 3rd set of tires.  Purchased our 177 back in January 2011.  First 2 sets were "C" load range china bombs, during the winter I left them at 50psi.  The Current set are Carlisle Radial Trail HD, load range "D" and are set at 60 psi.  This winter they will be left at 60 psi.  Tires are parked on a mostly sand surface but in an old abandoned horse barn so it is covered.  This is in northern Michigan where temps can get quite frigid, especially in January where it is not uncommon to have temps below 0 F.  I would say you are ok as is, I have never had any problems letting the pod sit in one spot from mid-October thru May 1 without moving it.

Jenga Jack, your tires will be fine over the winter. Keep them inflated to the recommended pressure and on a firm, well drained surface: concrete, asphalt, gravel etc.  I would suggest you consult the load range table for your brand of LT tires. We run LT tires on our 2017 179 and the recommended pressure is 65psi. Yours may be a different size or ply so best to consult the manufacturer or a reputable tire shop that has experience with RVs. Do not over inflate them to prevent flat spots. Tire technology has greatly improved to prevent this from happening. The jury is out on covering tires. We don't but that doesn't mean you shouldn't. We pretty much wear our tires out before the side walls get oxidized. Covering them will protect the wheels and tires not doubt. For us it is more hassle than it's worth. Safe Travels.