I run Brad Penn Racing oil and don't have to worry about adding anything. It's not rated for passenger cars so it doesn't fall under the EPA BS. It costs me under $4 per quart and i have a local distributor that I can go pick it up or they will deliver it to my house for free even. Joe Gibb's racing oil is another good option. You aren't gonna find an oil on the shelf at Wal-Mart that will work anymore.....you're gonna have to go to a speed shop or a local parts store that stocks stuff for hot rods.
