[Fulltiming]

The date code issue is real. I bought my first set of Michelin 305/75R24.5 tires from a tire store that was able to get them in less than a week. When they were ended their life, I bought the last pair that Newell had. They had been in the store room for several years. They held up well and I used them for almost 5 years but deterioration in the form of sidewall cracking set in suddenly and I had to replace them with urgency. That is when I discovered that no more were to be found. I did check other brands in that sizes but the ones I found were meant for local service and had a speed rating of 55 mph which is useless for motorcoaches. I have been told that the 11R24.5 Goodyear tires hold up well even if slightly overloaded. I would use top of the line tires if using 11R24.5 and always use the H rated tires. I have seen G rated tires on 1990's Newells and that isn't good, especially on the front. I use H all the way around with a speed rating of 75 mph. I try to avoid driving over about 68 due to tire issues, especially in hot weather. As you drive IH-10 in west Texas, the speed limit is 80 and the roads are littered with tire threads and carcasses from trucks overrunning the rated limits of their tires. With the damage that can be done to a Newell due to a blowout, even if you are able to retain control, I want to try to avoid blowouts.