Originally Posted by demarpaint
Originally Posted by aquariuscsm
You could always try a different brand of 0W20 to see if that makes a difference.
That is certainly an option. When I did run M1 0W20 I found it to be quiet, however some claim Mobil 1 is noisy.
In my VW's Mobil1 0W40 was distinctively noisier than anything else. I did UOA, and M1 performed really good, but that noise was just irritating.
Same goes for Mobil1 ESP 5W30 I used in BMW X5 35d, but not as much as in VW, probably since BMW was diesel and had that distinctive diesel sound, so difference was there compared to other oils, but M1 ESP 5W30 was such good oil, that I just used it.
In Toyota I did not use anything but Mobil1, but valves are singing definiately.
I have some 1600 miles to next OCI, will try Valvoline 5W30 since it looks good on paper, and see.