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by maerF0x0 1409 days ago
My experience in my vehicle (mazda cx5) is that foot off both pedals seems less drag than engine braking from a downshift in a manual, but also more drag than neutral/clutch disengage in a manual.

Letting the drag slow the vehicle in an automatic is still a win -- your instantaneous MPG goes to >99 and you save wear and tear on multiple parts of the vehicle. It's a really big win, and with people so antsy about the price of fuel (aka the cost of driving) I'm shocked to observe how many people are still driving in very expensive manners (fast starts, hard braking)