Good morning
I have a 2013 Tiffin allegro with the V10 engine
hope to get pointers on maintenance to make it last a long time

 

I see the tow hitch area has been recalled. Suppose finding a great Campground where you can care for it is a wise choice.

 

It is over ten years old. If you don't have maintenance records, I'd suggest you change all fluids and filters and then keep ahead on fluid changes going forward. Engine oil and filter especially.

Check the age of your tires as well.