Here's a recent article on motor oil from Mopar Muscle Magazine:

Choosing The Best Oils For Your Mopar Engine - Lifeblood; Dave Young, March, 2010 issue of Mopar Muscle - link

Quote:

All oils perform the same duties, but some perform them better than others. What factors do you consider when choosing a motor oil? - Dave Young, March, 2010 issue of Mopar Muscle Magazine