9860 in 1T/ac crop, doing up to 10m/h or 16km/h, running at the same speed as an untuned S690 with same size front in same crop. Dropping 30rpm using less fuel. Obviously the tune is making a big difference here.
9870's doing there normal thing more go and up to 20L/hr saving on fuel.
CR960 and JD 9750 haven't start yet.