Using DFCO to increase your MPG

[BailOut]

Originally Posted by micahsyl

um,,, i think this is called "coasting" people have been doing it for decades lol i like the special name for it now... DFCO great marketing ploy!

For decades, every time you took your foot off of the accelerator fuel still trickled into the carburetor or sprayed through the injectors at least at an idle-level flow. What has changed over the last decade is that carburetors have gone away and some car's computers are smart enough to turn off the injectors completely when you're in a "coasting" state.

That's DFCO - no fuel flowing at all when you coast in gear. In 65,000 miles I have never lost a fuel bar in the downhill segments of my commute (2,500 feet of elevation drop on the way to work and 4,500 feet of drop on the way home).