Using DFCO to increase your MPG

[vincentg]

is there a video of how exactly one can accomplish this? :)

[Amdkt7]

Originally Posted by vincentg

is there a video of how exactly one can accomplish this? :)

very simply, when you take your foot off the gas it happens, except as you slow down and the engine RPM's drop below around 1100 rmp the ECU starts supplying fuel again, to avoid stalling the engine.

Automatics do it too, but not as quickly, depending on the gear engaged.

Downshifting to slow the car when braking of course is the same thing, foot is off the gas. If the DFCO did not happen you would not get much engine braking.

It's really very simple, and you don't need to know anything about it for it to work. Knowing that it is cutting off the fuel will help you to decide to either coast with the clutch in or or out, depending on how much engine braking you need.

[tooter]