|
I can probably summarize it for you.
-Leave it in gear and coast when you need to come to a stop unexpectedly, like when a traffic light ahead of you turns red, or just when you need to bleed off speed quickly. This is less efficient than coasting in neutral (still has pumping losses and adds drag) but it causes your engine to burn zero fuel while coasting, and helps you slow down.
-Coast in neutral whenever you can do so and not lose speed, or when you have a planned stop, like a stop sign you're aware of well in advance. I coast in neutral down hills and use power up the other side. I also tend to coast toward stop signs whenever I can.
Coasting in neutral with the engine off is better than either as it's zero pumping losses, zero drag and zero fuel used, but you'll want a kill switch to do so safely. Many vehicles lock steering when you turn the key off, whereas this doesn't happen if you use a spark or injector kill switch.
|