Quote:
Originally Posted by Chisel86
When you coast in gear (in a modern fuel injected car), it actually doesn't use any fuel at all, as the car is now pushing the engine and the computer knows this. Whereas when you coast in "N", when the engine slows to idle speed, it actually uses fuel to stay running.
This does not apply to cars with carburators and fuel pumps not controlled by an ECU.
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So you said (if I understand) that when IN GEAR w/ENGINE ON, NO FUEL flows to the engine when coasting down.
And At NEUTRAL COASTING enough fuel flows to idle the engine.
Need some proof on that.
Because the spark would have to be turned off also. And I just cant see that happening.
That is technology that is VERY similar to "engine off" at lights like BMW is bragging about in their commercials on the 3 series