<<Here's my $.02 if you want it. Let your car warm up for 5 minutes or so in the warm weather and 10 minutes in the really cold stuff. Just because the oil pressure guage shows pressure it doesn't always mean EVERYTHING in the engine is oiled yet. My best friends father used to do a demonstration with an old Chevy 250 inline 6. He would remove te rocker cover and tell someone to start the car and watch the manual oil pressure gauge he had under the hood. The gauge would go up after only a few seconds signifying oil pressure.....BUT....The rockers were still not getting oil.....Took some of them a good minute and a half to pump up the lifters and get the whole engine oiling properly.>>
This anecdotal scenario is precisely why Mobil 1 0W40 exists, according to Exxon-Mobil, Porsche and Mercedes. Lubrication right now down in the deep dark corners of the engine during a cold start. BTW, that old Chebbie engine most likely had Havoline 30W or something similar in it. And another BTW. Before someone with a 240D claims that 0W40 is too watery for his hi-po engine, I shall point out that The Porsche Carrera GT's V-10 engine's factory oil fill is, what else, but Mobil 1 0W40. RLE/Seattle
