Originally Posted by EnJoY120
Oil is not oil, brands do matter. Mobil 1 does not equal Amsoil.
I've run Amsoil in all my cars since 2005. I have had my oil tested and I have personally noticed differences when using other brand oils that were inferior.
Amsoil or Subaru is what I would stick with. German Castrol used to be great stuff also.
I would strongly suggest not debating oil with him. You'll end up having to call your mom for an ego boost.