http://www.amsoil.com/lit/g2156.pdf I've used Amsoil since I got my bike new in 11/2004. I run it HARD and frequently change the oil. I've checked the valves twice & both times everything checks good. The motor internals look new with no wear. The bikes a 04 yzf450. I recently installed a Rekluse & it works perfectly, I couldn't be happier with this oils performance. It's a little more expensive, but it's worth the peace of mind to me..... Hey GRAYRACER513, have you seen this report yet???