Originally Posted By: demarpaint
Originally Posted By: Olas
The worst oil IMO is one that is expensive and mediocre, and increases valve train noise compared to every other oil tested.
To me that is M1 0w40.
Interesting, it has a big fan base here. I don't ever remember reading complaints about M1 0W40. Occasionally a complaint would pop up about their 5W30, but honestly this is a first for me seeing anyone complain about their 0W40.
Tried it, not a fan. Add me to the list of complainers about shearing.