Quote:
Originally Posted by Wagon Sailor
In fifth gear at 80mph, each of the three cars we're currently running uses less than twice the fuel needed to drive at 40mph. Doesn't that mean that each is more efficient at the higher speed?
There is presumably a 'sweet spot'. I don't know where it is per vehicle, but it isn't 60mph.
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Definitely! The point i've been trying to explain!
The "sweet spot" seems to vary by vehicle and is best found by experimentation in the individual vehicles.