Originally Posted By: Brasileno
This is what a LOT OF people say about Mobil 1 oils: Car performs great, usually gets noticeably louder engine.
Not every single person, but, it has become my only reservation about going with Mobil 1 as a brand, that consistent observation from a good number of, though not every single, people.
LOT OF / not every single person / good number of:
That's a pretty wide range. From reading posts here the past 4 months, I'd say it's around a 50-50 mix of response, maybe even as high as 60-40 to 65-35 in favor of M1 not having noise issues.