Tire pressure while parked

Boozecamp wrote:
...Also, I've always wondered............we cover our RV tires with vinyl covers for UV protection like they're blonde-headed infants, but I've NEVER EVER seen covers on tires mounted on cars, trucks, boats trailers, motorcycles, etc. What's up with that? And yes....I park my truck in the same place every day so the truck tires see the same amount of sun as my 5er does! :h

The way it was explained to me, all tires contain compounds to protect vs UV, cracking, etc, and these are "spun out" to the surface of the tire constantly as it rolls down the road. Because our trailers move so much less than a standard vehicle, the protectants don't get well distributed so the trailer tires are more at risk for UV damage.