Did a search for Amsoil after my mechanic recommended it to me, just to be sure he knew his stuff. The website has some great graphs comparing it to all the others, I'm gonna use it fer sure. Also, when using their filters, they CLAIM you can go 25,000 mi if you change the filter at 12,500 mi.. I think I'll won't go near 10,000 mi per filter, I'll change every 6 months instead. Kinda pricey from the mechanic, $64.95 plus extra for the filter. Going to find the oil and filters online and do it myself.
http://www.amsoil.com/performancetests/g1971/index.aspx
