Love it for my wife's race/street car and notice no difference between it and the Driven HR race oil I ran in it. My car can't stand it and I had to go back to the old stuff. I gained a temperature change in the motor and lost consistency. Both oils are very similarly rated and of course, one is cheaper than the other (by a lot). But not the one my car liked.
My cars issue might be a synthetic thing and it's strictly a track car.
