Just had 6 new Michelin 255/80R22.5 XRV tires installed on the coach yesterday. We used the FMCA program and saved about $50 per tire. The manufacture date was 3113.The old tires were dated 5003 and had 77,000+ miles on them. They have never had any problems.
The coach is stored inside when we aren't using it and the tires and wheels are removed at least every two years for inspection and a good scrubbing with soap & water and two coats of 303 protectant. I also check the tire pressure every morning before we pull out of our campsite when we are traveling.
I know that most owners replace their tires @ 5 to 7 years, I try to take good care of ours and am very vigilant with the preventative maintenance.
Why would I ever buy anything else except Michelins when my family's life is dependent on them? A few dollars less for other brand tires isn't worth the gamble.
Just my opinion.
Good Luck,
Journey Indiana