Using DFCO to increase your MPG - Toyota Yaris Forums

Yaris · 05-16-2007, 12:46 PM

With an automatic transmission, I find it more efficient to be in neutral when rolling down an incline, and then shifting to DFCO mode when I'm approaching an anticipated stop. I get the best mileage driving this way instead of always alternating between OD and DFCO. It doesn't make sense to accelerate with OD off when you can acceralate with OD on and then shift to neutral while cruising a fair distance before having to hit the gas pedal again.
I try not to accelerate at the exact moment I shift into drive because of the potential thumping of the transmission.
Does anyone know if shifting in and out of neutral while in motion is harmful to an automatic transmission?

Yarii · 05-16-2007, 09:36 PM

I don't think it should hurt anything as long as you're not on the gas when you do it, and assuming you shift into the right setting (don't tell it to go from N into low at 60mph) but it'd be nice to get some more opinions...

Quote:

Originally Posted by Yaris

With an automatic transmission, I find it more efficient to be in neutral when rolling down an incline, and then shifting to DFCO mode when I'm approaching an anticipated stop. I get the best mileage driving this way instead of always alternating between OD and DFCO. It doesn't make sense to accelerate with OD off when you can acceralate with OD on and then shift to neutral while cruising a fair distance before having to hit the gas pedal again.
I try not to accelerate at the exact moment I shift into drive because of the potential thumping of the transmission.
Does anyone know if shifting in and out of neutral while in motion is harmful to an automatic transmission?

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05-16-2007, 12:46 PM	#1
Yaris Drives: 2010 LB Meteor Metallic Join Date: May 2006 Location: Markham Posts: 65	With an automatic transmission, I find it more efficient to be in neutral when rolling down an incline, and then shifting to DFCO mode when I'm approaching an anticipated stop. I get the best mileage driving this way instead of always alternating between OD and DFCO. It doesn't make sense to accelerate with OD off when you can acceralate with OD on and then shift to neutral while cruising a fair distance before having to hit the gas pedal again. I try not to accelerate at the exact moment I shift into drive because of the potential thumping of the transmission. Does anyone know if shifting in and out of neutral while in motion is harmful to an automatic transmission?