Never heard of it. I'll stick with the big boys who have been around forever and have bizillions of bucks invested in research. I use Lucas in my HD; Shell Rotella in my Cobra because of it's zinc content needed for solid lifters; Mercruiser oil in the boat;and Casterol in my Chevy 350 and Xterra (just gotta get more toys!). Not a huge fan of synthetics although I have used Royal Purple in the past. I change oil often enough so that it's not worth the money for synthetics.