$30-45k engine, $300-500 oil change once a year, superior product in every way, nope no advantage. Motorhome owners are notorious for quick start ups and idle 10 minutes then work the******out of a cold engine which is pushing a fully loaded unit as per the many claims here. Then no matter how hot or cold they need to be running with the light vehicles up the hills/traffic and most don't watch the water temp guage and have no pyrometer to see how warm the top end is getting. Nope no advantage. Yup the other stuff works and does a good job but oil sampling and engineered oils give you the technical truth of the engines condition internally. Yes you can use synthetic oil if the engine is past initial break in and not leaking a bunch of oil from the gaskets and seals.
