For those looking for a track oil with high levels of anti-wear additives, AMSOIL recently came out with a racing line of oils that don't comply with the latest API regulations. As such, these oils contain high levels of ZDDP anti-wear additives, but low levels of detergents. They do not meet owner's manual requirements, nor are they suited for daily driving.

Although I had been using a 10w40 at the track, they didn't come out with the new line of oils in a 40 grade so I ordered two cases of the 10w30. The 10w30 is on the heavy side for a 30 grade oil and with its high levels of anti-wear additives, it might work, at least in cooler temps. I'll likely try it at the track this fall sometime and see how my oil temps and oil pressures respond.

AMSOIL Dominator Synthetic 5w20 Racing Motor Oil (http://www.c66racing-synthetics.com/Product%20Bulletins/RD20PB.htm)
AMSOIL Dominator Synthetic 10w30 Racing Motor Oil (http://www.c66racing-synthetics.com/Product%20Bulletins/RD30PB.htm)
AMSOIL Dominator Synthetic 15w50 Racing Motor Oil (http://www.c66racing-synthetics.com/Product%20Bulletins/RD50PB.htm)
:cheers: