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whizmo · 09-20-2010, 06:59 PM

Just to be clear guys, almost all modern FI systems shut off ALL fuel during coast down and only re-introduce for idling as a vehicle is coming to a stop. So putting the vehicle in neutral when going downhill actually uses more gas because the FI system has to use extra fuel to keep the engine from stalling.

Now you can come up with some bizarre scenarios where coasting in neutral allows the vehicle to coast more easily, building up momentum that you can use later on the flats in lieu of throttle, but I doubt these scenarios are very common.

- Mark

09-20-2010, 06:59 PM	#44 (permalink)
whizmo Registered User Join Date: Dec 2005 Location: WA State Posts: 1,817	Just to be clear guys, almost all modern FI systems shut off ALL fuel during coast down and only re-introduce for idling as a vehicle is coming to a stop. So putting the vehicle in neutral when going downhill actually uses more gas because the FI system has to use extra fuel to keep the engine from stalling. Now you can come up with some bizarre scenarios where coasting in neutral allows the vehicle to coast more easily, building up momentum that you can use later on the flats in lieu of throttle, but I doubt these scenarios are very common. - Mark Last edited by whizmo; 09-20-2010 at 07:02 PM.