On my second set of Toyo's on the big truck, and granted, I haul some heavy weight with them ... I'm not happy with tread life at all. I'm still waiting for an E rated KO to come out in the 285/70/17 so I can give 'em a whirl. I have the KO's on both my little rigs and absolutely love them on those rigs ... but I won't drop to a D rated tire on the big one just to try them. Come on BFG, lots of people asking for them!