Tire life

I agree with you. Replace the tires. Then you will know their history and that they are driven while inflated to the proper pressure.

6-8 years seems to be when many RVers change tires.

I replace tires after 5 years, but my steer axle goes to the tag after 3 years.

I may be wrong but I my self would run them this year to get every thing sorted
out on the new to you rig. If you have plans for a long range trip this year
I would maybe change them out. If they look like new they may have been garaged
or covered most the time.
Congrats on your new rig, Brian

I'm th OP on this thread. Thanks for the comments.
I think I'll take it in a 100 mile shake down trip and then replace the belts, shocks, tires and have all the hoses checked before heading out on an extended trip out west.
I also have to change my signature to say
Winnebago Journey Diesel.
Thanks again.

I would at least put 2 new steer tires on the rig before any journey.
Loss of ster tire could be disastrous

Moved from Forum Technical Support

When we had a class C and an A, 6-7 years was the goal.

My general plan was to go 7 yrs. of which I did with our previous coach. Since our new coach is much heavier, I'm going to stick to a 5yr. rule, so in 2019, I'll get a new set (tires dated 2014).

My goal is to never have a breakdown if at all possible. The damage a blow-out can cause could be very expensive and time consuming waiting for repairs, etc.

Good luck,
MM.

Age of the tire is just part of the equation as to when you replace tires. Heat buildup, low pressure, sun light, sitting for long periods, damage from pot holes, how close to max tire rating vs weight of your MH, and where you live all factor in. Someone on here a few years back posted a gov't study that was very interesting showing tire failures from blow outs being much higher in the southern states due to heat. Everyone's situation is different and some are more risk averse than others so changing tires every 7 years seems comfortable. Some would argue every 5 years is safer and they would be right. I live up north and my tires are always in the shade when parked, I inflate to max pressure, each tire carries the same weight and well below max rating I probably won't replace until 10 years unless I sell the MH first. Tires can be broken down and inspected from the inside for any damage or tread separation.

Without knowing the history and how well and often the previous owner used them, I would replace the front two and then have the rear four inspected and use one of the fronts if any fail the inspection. I would carry the best of the two as an unmounted spare on the roof. I went seven years on my front tires that I put almost all of the miles on and 10 years on the six rear tires. I did swap the two tag tires to the front at five years. All 8 tires are now on the back of my 10 wheel dump truck...14 years old.