Comments by "Mikko Rantalainen" (@MikkoRantalainen) on "Are Aeroflot REALLY Flying With NO BRAKES?!" video.

  1. The total amount of fuel saved with engine brake (for 100% ICE truck) is maybe one litre of fuel per hour if executed perfectly. However, if you try to drive using only engine braking, you'll be planning your approach to intersections and traffic lights a lot more and if that planning avoids even one full stop, the amount of fuel you save is quite a bit. That is, if you mentally limit your typical braking power to engine braking only, it will affect your driving style which will affect the fuel usage a lot. If you want to save a lot more fuel, drop your long haul speed from 80 km/h to 70 km/h. However, most drivers are not willing to take the extra hit in delivery time even if that would save maybe 20% fuel.
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