Beaver: I know that the old engine types are running great, however I got supicious minds about the new "commonrail" engines, I think the transmission and engine controllers some sort of derates the engine so they cannot pull the same as a regular range transmission tractor. I have made a dynamometer test meassuring PTO-effect on 2 7810 tractors with and without IVT, and they were even, but I think the IVT-tractor cannot pulloff all engine power onto the wheels. Do know anyone one who runs 2x7810 tractors with and without IVT-transmission, and equiped with the "commonrail" engines as wellIJIJIJ I would very much like to know if they pull even as the tractors you refer to with the old engine typesIJIJIJ I don't run any combine, I work as a Deere technician in Denmark