Jack French; 'making crankshaft last'

[JonE]

Theory doesnt really consider whether you have a crash helmet on though, surely. The bit about going down hills is something we can benefit from - but whether its sensible in practice on a steep hill might be very different!

So, coasting means taking out of gear (so you are less in control) presumably? Rather than holding in gear with no accelerator and achieving engine braking? I'm not sure I'd want to do that unless it was very straight...