Quote:
Originally Posted by gsrbri
No doubt Pennzoil has arrived at this recommendation but BMW has provided a conflicting one. If they are warranting the M engine through 50,000 miles through the factory, or beyond 50,000 in my individual case, I plan to stick with the motor oil viscosity the engine was designed around. Seems to make sense, from my perspective
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The manual states that any oil that carries BMW LL01 oil is approved. Those LL01 oils only come in certain viscosities. 0w-30, 0w-40, 5w-30, 5w-40. I don't know how hot it gets in Boston summers, but you might want to look into the 40 weight oils if you're going to be tracking in the summer, more protection.