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I do not have a chart from brand to brand, but if you look for the energy star logo on the yellow tag, that will tell you it is among the most efficient. Years ago, a dishwasher would use about 12 gallons of water per cycle. Modern dishwashers use as little as 4. They recycle a lot of water with advanced filtration and water sensors making the most of it. Almost all LG dishwashers are energy-star rated, so they will be on the lower end of the chart. Making them very efficient.
