Quote:
Originally Posted by IamIan
Just my 2 bits.
The too long Engine Off Coast aspect is a factor of the exponential influence of aerodynamics ... meaning it is more aerodynamically energy efficient to travel at a steady average speed than it is to achieve the same average speed while fluctuating the speed up and down... no matter what average speed you want to travel at.
So there is a point where further engine off coasting will actually produce worse FE and lower MPG.
Although I suspect traffic conditions would often make it unsafe to fluctuate one's speed that much before you reached the FE loss point.
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Quote:
Originally Posted by moorecomp
 Traveling any distance and burning no fuel is always going to be more efficient than traveling the same distance with the engine running.
It is called "paralysis through analysis". |
But there will be a point of diminishing returns, which is what I think IamIan is getting at. Accelerating to 70mph and coasting to, say, 20 and then accelerating back up to 70, repeatedly--would this be as efficient as simply maintaining 45-50 mph?