Busting the Myth of 5 year tire life.

I ordered my coach from Winnebago and am the only one to drive it .It will be 7 years old in May. For 3.5 years this coach was stored under our grand stand at our fair grounds. Pitch black for the Ohio Winters. When out un less I am driving it it has covers on the tires. I have used 303 treatment since day one and running the air pressure that Winnebago says to run . My tire maker says after 7 years have them checked every year and if no cracks they are good for 10 years. The French have made these 22.5 rv tires for years and I have 31,000 miles on them. At home I added a place by my drive way so no sitting in dirt for these tires. I think I will have them checked every 6 months till 10 years. This is just me but a lot of these old take off tires truckers buy our old tires and get a lot more miles out of them them. They really like the 5 year olds .I have heard them talking at Flying Jays lounge.