The gains are there, they are compounded after dozens and dozens of engine off coasting , you will save a negligible amount but it will add up and you can hypermile with it to get more gains. The technique defiantly works it`s just to much work for me..
I don't engine off coast because I don`t need to to get great gas mileage , I normally coast with engine On unless its a extremely long coast , like a 5 or 10km , I have a mountain Pass that I coast home from for over 10kms a couple times a month.
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Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
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