Ok, as a data point: I have a (new) Bosch dishwasher here in CA. The "Auto" wash cycle takes 2h20 and I can hear the unit flush the water down the drain after i

Ok, as a data point: I have a (new) Bosch dishwasher here in CA. The "Auto" wash cycle takes 2h20 and I can hear the unit flush the water down the drain after initial rinse. My Bosch dishwasher in Europe does the Auto cycle in less than 90 minutes on a single change of water. I think it's about different consumer expectations: it the US it seems people don't care so much about energy/water consumption, so other things matter. BTW, both dishwashers get things done, the dishes do come out clean.