If you can buy it at Wal-Mart, Pep-Boys and the like, it's probably crap (exception=RedLine). The products made by Lubro-Moly (which aren't available through chain stores) are about the best you can use, and are available here through PartsShop.

Before jumping into the additives controversy any further, I suggest some light reading:

http://www.gsresources.com/garage/gs_additive.htm

I hope those of you that haven't read this already will find it educational.

__________________

Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."