Quote:
Originally Posted by ps2fixer
Before making the engine kill switch, check how easy your car will DFCO which basically would do the same thing automatically.
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No, it doesn't.
DFCO cuts the fuel, but then you're engine braking.
Which is still a form of braking, and scrubbing off your kinetic energy a lot faster than coasting in neutral would.
Engine kill switches are used to kill the engine while in neutral, so it doesn't run when coasting.