Brett,
I'm fairly new to RVing, having purchased a 2000 Monaco Type A about a year and a half ago. It has 350 hp ISC Cummins engine. Your comment that all diesel engines, with the possible exception of Cummins type B engines, use SCA drove me to my coach and engine manuals. Neither says anything about SCA. So, do you recommend that I get the test strips or not? And if the coolant doesn't have any SCA, should I add any?
Lowell Bergen