after doing some research instead of using 15w50 mobil one, i am going to go with 20w50 mobil one v twin, who uses it and any luck with it?

oh yeah there 850hp blower engines

Break Her In First

just got to 50hrs

Should Be Good Then

I have been using it for over 3 years, gives the best protection against thermal breakdown out there IMO. We also used it in our mod-lite race cars where oil temps often exceeded 300f. The engine builder loved it.

I use it in my 600s. It has worked well. Not sure I need it though. Great against thermal breakdown, but then again my oil temp has never gotten above 190, and runs more like 150 at cruise. And I change oil every 15-20 hours so it is probably overkill. I am thinking of going back to the 20w50 Kendall that Merc recommends and keep changing it at 15 hours.

I use it in my 565/950hp.

Has anyone used it in the new Merc 700's?

I use it in my Harley Road King Screaming Eagle motors and it works. I never thought about using it my boat motors.