Here's a link for the test's used to determine how oils perform.
www.amsoil.com/comparison/motor-oil.aspx. Note, I am not an
Amsoil dealer but I did my research for the best
oil on the market today. I wanted the best engine
oil and tranny fluid I could find for my diesel p/u that hauls heavy loads. I plan on using it in my cobra engine after break in.
Autobody prof