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Well your not burning oil like me but since you are in a much colder climate maybe you might be interested in the Mobil 1 0W-40 that I used on my last oil change. You probably won't change oil again before the winters over but the 0w will protect more on start up and I think the thicker viscosity at high temp is the reason I'm only down a 1/4 of a quart through 3,000 miles when I was burning a quart every 2k before. It's also on BMW's approved LL-01(long life) oils so no warranty issues should something happen. I'm sure what you used is more than good enough just thought I'd bring up positive results I've had with the switch.
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