Originally Posted by Mimi05SRT6
I'm sticking to my AMSOIL 5W-40.

AMSOIL's are only synthetic and they are the first to create it. Of course I get them at cost because my friend, who is also my neighbor, is an AMSOIL dealer.
Here's a little history about AMSOIL...
http://www.amsoil.com/company.aspx
And here's what I only use in my babies...
http://www.amsoil.com/storefront/afl.aspx