X's 2 on Don's input. With a suggestion to review the documented (key word here is 'documented') maintenance records. If you don't see recent service of the cooling system, sure would not hurt to treat the new tide to a full service flush and new coolant. Check documentation on the hoses to, if not replaced within the last 10 years, not a bad idea to replace them. (Always better to do these things on your schedule, with your shop, as opposed to on the side of he road in a different state.)
Enjoy it when you are in it,
Roo II is our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...