Parameters behind manufacturer oil specs

[FoxS]

Hi long time lurker here!

I have found most info I need through a google search but cannot find much on the actual parameters behind manufacturer oil specs.

I have found Ford's actual requirements for specs and want to compare others so that I truly understand trade offs

I have used the Lubrizol tool but it is not exhaustive nor does it talk directly to the actual specs

Thanks to anyone who can point me in the right direction

 

[Quattro Pete]

Here are some:

http://www.aftonchemical.com/Lists/Brochure/Attachments/40/Afton_Lube_Spec_Handbook_2012.pdf

 

[FoxS]

Thank You

That's really comprehensive