Quote:
Originally Posted by gsrbri
BMW wants 0W-30 in the car, so I'm sticking w/the factory recommendation - I'm just changing it more frequently. If it needed a thicker oil they would have specified it for different conditions (hot weather, track) Every current turbo M engine uses this oil viscosity and they all carry a 50k mile warranty, so that's enough reason for me.
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You do you. Just don't spread misinformation. No where in the manual does it state 0w-30 is the ONLY viscosity approved or is what they want. What BMW wants for this engine and their other current turbo engines is a LL01 oil.
In the manual it doesn't mention any specific viscosities at all. It only states BMW Long Life 01 FE or BMW Long Life 01 approved oils should be use. You keep bringing up the 50k mile warranty which makes me believe you're not going to keep it past the 50k for very long. Others might and would want to protect their engines for the long haul in the event they use it in "severe conditions". I along with many others as shown in this thread and other oil threads switch to a 40 weight oil especially if tracking the vehicle due to the higher protection that 40 weight will provide in those "severe conditions" aka higher engine temps. I live in So Cal, all the tracks here are in the desert. I'm going to protect my engine with a 40 weight oil. My last free oil change the dealer put in 5w-30, going to switch that out before my next track day.