Another debate or opinions

All of that exercising is fine but occasionally stuff will still break. No amount of exercising, or travel use for that matter, will prevent the inevitable failure of some mechanical parts. The problem is that you just can't predict when a part will fail. Preventive maintenance helps but, as many have found out, sometimes the replacement parts are not as good as the original.

I have diesel powered heavy equipment that often sit for a year+ and put fresh batteries in and they start right up... one dozer is only 45 years old. I agree tires last longer if exercised. The three months snowbirding is usually the longest my DP sits and on the day before I plan to leave I crank it up for the first time and let the coach air up. There is lots of farm equipment that sit for 4-5 months in the winter... many 40+ years old.

I have a portable welder that sits outside, often so long between uses that the magnetism collapses and it will not weld. Spark the leads to a 12V battery and it's good to go. It was probably 20 years old when I bought it 40 years ago. Do you think I exercise my generator every 30 days?

I guess if you have nothing better to do, then taking your rig out for a 20 mile trip running the generator is not going to hurt anything, but just cranking them up will. Different strokes for different folks.

The one change I would encourage would be to drive it a bit further each month. Your objective is to get the transmission up to normal operating temperature. If a 10 minute drive achieves such then disregard. I'm fortunate enough to have the coach in the driveway and the interstate 5 miles away. Drive a couple of exits turn around and come home. Run the generator at the same time to keep it happy.

I start up my coach, genset, as little as possible.

This also applies to motorhomes.......use it or lose it.

My grandfather used to say "If you dont use it you lose it". Yes, I could tell you some stories about that guy. :)