I ask the Motul rep at Moto GP a couple years ago he said there was a difference. The 800 road race is a different blend for higher continuous rpm use. There is a different the off road is a orange color and the road race is red. If i remember right. If you ride on the street the 600 / 710 is fine and it is low smoke. I run the 800 road race because I like the way it smells. And that is the most important when picking a two stroke oil.
And that is the most important when picking a two stroke oil. 
