Quote:
Originally Posted by Kodak
Here's my question: If you can make it to a stop by either: coasting in neutral, or coasting in gear at an rpm too low for fuel-cutoff, which consumes less fuel? Do both options simply consume the same gph as idling?
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Start from your idle fuel consumption.
Mine is 0.5L/100 km
Which means that when coasting at 10km/h (6mph), I'm consuming 5L/100km (47mpg, what the car is rated for) , so it simply isn't worthwhile anymore to coast with the engine on at these slow speeds - I don't use it much below say 15-20mph.
I try to arrive at that speed bracket to make a turn, or to brake to a stop if necessary.
My fuel consumption started to drop significantly when I started coasting (engine on) instead of using DFCO.