Many Z owners use this oil?
Ran into a random Z driver in a parking lot yesterday and got to talking. He's been using MB1 0w-40 for over 30k+ miles and "swears by it."
Mentioned better flow at start up and protection during "hot drives" and a better anti-wear additive pkg.
He also does the Oil Analysis thru Blackstone.
P.S. Been using MB1 5w-30 in mine