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seemed pretty magic to me, i instantly saw a 10% (4mpg) increase in mpg's after I started using it.
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You mean... after you started consciously aiming toward decelerating over a longer distance and using the brakes less?
Reality check: Consider that if you manage to stay in DFCO mode for a full hour, you've only saved about 0.2 gallons of fuel (specifically due to DFCO) since the Yaris' engine uses about 0.2 gal/hr at idle. To get a 10% improvement in fuel economy over the course of a tank of gas, you would have to spend over 5.5 extra *hours* in DFCO mode. Do you think that you are managing that much?
-Steve Bergman
03-09-2010, 10:56 PM
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