Coast in Neutral or Not?

Found this on the "Fuelly.com" tips section:

"To Coast in Neutral or Not...

Coasting to a stop in neutral with a modern manual (and in some instances automatic) transmission might not actually save you as much gas as keeping it in gear. Many modern engine management systems sense deceleration and negative load while the car is in gear and cut off fuel from the injectors, allowing the turning drive shaft to keep the engine going. Shifting into neutral while decelerating means the system has to keep the engine running with gas."

Does anyone know if this applies to the manual Tacoma 4cyl? I'm in the habit of putting my foot on the clutch and sneaking up on a red light instead of braking at the last second. I've always heard that, since this idles the engine way down (900rpm on my tacoma) it saves gas. This seems to say that it won't.

I can't imagine it being good for the engine to be essentially pushstarting itself every time you let off the gas in gear, but what do I know?

 

Get caught using "Georgia Overdrive" with some companies and it can lead to automatic "firing"......If it would "help" in anyway the Factories would "build it in"....

We rely too much on that foot brake now,take away the driveline resistance and you might understand why they build "run away" ramps for long downhills

Snoope back quiet

 

when i did the cruise control mod and coasted in gear i felt a minor change in the engine, going down hill in gear, i believe it was injectors not adding fuel, this might support the idea of mpg better in gear

 

Why do the RPM's stay up when coasting? When taken out of gear, mine will stay around 1.3-1.5 until after I come to a stop. 6spd V6

 

The momentum of the vehicle is assisting in the turning of the crank while you are coasting. If you take it out of gear, the momentum of the vehicle is not transmitted to the crank shaft, and it is the pistons that have to fire to keep it moving.