Originally Posted By: ARB1977
From my understanding both oils are made by the same company, just in different bottles. Is it possible for a blend to go possibly 10K? I know i should do a used oil analysis to verify. I plan on going to six month or 15% olm. Thanks.
You are correct in your understanding with regard to MC 5W-20 and "Genuine Honda" 5W-20. And, yes, it is possible to go 10k miles with either using the MM. That said, if you follow the posts on most Honda boards, you'll see it's not uncommon for Honda owners to pay lip service to the MM -- meaning owners know what's possible -- but they change their oil and filters more frequently anyhow. Oil habits die hard. Now that Honda has a MM, the happy compromise for some owners is changing the oil at 50%, not resetting the MM, and then changing the oil again at >10%. In this regard, if you are familiar with Honda's maintenance regimen, you know it calls for an oil filter change every second oil change. This, too, drives some people nuts. FWIW, I trust the recommendations of world's largest engine manufacturer. They have served me well for decades.
One other comment. I read a lot of Honda boards, and I rarely see a complaint about oil consumption (much less excessive oil consumption) involving a Honda engine. Half a dozen a year, tops, and the reasons for the complaints are usually self-evident when you scratch below the surface. The cars aren't perfect, of course. None are. But the k-series engine in particular is one of the most reliable, trouble-free engines known to mankind -- a fact confirmed by years of used oil analysis posted here and elsewhere. Enjoy yours.