Originally Posted by DRTRCR22

Read the first link carefully then choose any of these three excellent oils below from any circle track race parts distributor.
However, you can now get Valvoline Racing Synthetic 20-50 at nearly any auto parts store for about $4.50 qt. It has as much Zink additives as the more expensive ones. I use it in my 600 hp alcohol dirt circle track modified at 8,000 rpm... and this $15K engine runs cooler than any other I've had before.

http://www.abcauto.com/MessageCenter...?ContentID=162

http://www.bradpennracing.com/

http://www.joegibbsracingoil.com/

http://www.championbrands.com/SpecSheet/EOXP.pdf