Full disclosure, I am running those Michelins on my car after taking them off my 17 year old daughters 300D. At that age, they are cracked and rotted, but still roll true. I figure if they go I would rather them blow on my car than hers.

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1985 300 TD 448K
1984 300 TD 278K

1983 240D euro 240k
1994 f-250 idi turbo 330K
1986 f-350 IDI
1987 F-350 IDI

1985 JD 1050 4wd
1965 IH 3660

I appreciate your full clarification. It reminds me of something that I am currently taking into account and that compelled me to start this thread:

In 2019, I had a set of 4 Yokohama P195/70R-14 Avid Touring tires on the car. They were 6 years old at that time and had 28,000 miles (not a lot to my way of thinking) on them.

I was driving 60 MPH on an interstate, dry road and clear weather, had only been driving for 15-20 minutes, no loud noises, and suddenly the back right tire blew out.
A light load, too: The only things in the trunk were the spare tire, an emergency kit, and a bag of tools...and no passengers either.
The tire shop attributed the failure to age and found nothing that would indicate otherwise. Not a rigorous scientific analysis, but there I was. So, in short, I'm a bit weary of driving my car on tires 5+ years old - just my opinion.