While the EPA rates many automatics higher than manuals today I think that's a product of the test method. You can drive a manual more efficiently than an automatic but the EPA test cycle doesn't allow a low rpm shift on the manual while they do allow low rpm shifts on the automatic. Basically the automatic gets to do what the car knows is best, while the manual has to be shifted by some ancient book the epa put together. That's why you see lots of people here beating the EPA estimates by a bigger percentage with manuals compared to automatics.
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