5w-20 motor oil : who's using it ? ...

[SilverGlow]

Originally Posted by 1stToyota

Both are okay, if you don't mind the extra noise with 5w-20. To me extra noise = extra wear.

Your opinions lack scientific bases, and you use "noise" to determine wear?

People that go to college and learn science know that actually using highly controlled and scientific tests, like a used oil analysis to ascertain wear is far more conclusive.

And if you use noise to decide, did you run your car in a sound studio, and monitor the noises with fined tuned computer monitors? Did you do before and after tests?

Did you graduate from highschool?