MarkTwain wrote:
Continuing to use tires over 6 yrs. Is like playing dice at Los vegas, the odds of not having a blown tire and possible accident and or damage to your RV ARE NOT IN YOUR Not GOOD !! Buy new tires??
Really? You must be clairvoyant to see/know how the OPs tires were cared for.
However that said, having a set of Michiblows that are that old and not all dry rotted is like winning at dice in Las Vegas. If the OP had said almost any other (name) brand I wouldn’t have even mentioned it. Never had good luck with Micheylins.
But if the truck has been primarily garaged which I’m guessing is likely with a 7 year old grampa miles-mobile, they may be just fine.