The G2872 is classified as a CEE Tier 1 dishwasher, exceeding current Energy Star standards. The appliance uses as little as 1.1 gallons of water in its eco programs and 4.96 gallons in normal wash programs. Sensors help increase water efficiency by measuring the turbidity or clarity of the water and then adapting water consumption, program duration, and wash temperatures based on the level of soiling. 800.843.7231. www.mieleusa.com.