Euromodder, I agree with most of what you're saying, but most of what you're saying is about P&G, not DWL which is what I question. Hills seem like P&G enhancement. Pulse on the climb, glide on the descent.
DWL implies constant load on the descent, in other words using the engine to increase speed. It's obvious gliding is best.
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Originally Posted by euromodder
But you lose efficiency whenever you go uphill or downhill.
Uphill, a CC or the driver simply pours on fuel to keep the speed up.
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I know you'd be using more fuel, but going uphill & keeping the speed up would usually be more efficient. When you're loafing along on flat ground your below the optimum region on a BSFC map. Higher load would bring you up and be more efficient.
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Originally Posted by euromodder
You trade fuel for potential energy : your car's weight @ height.
The engine load increases, and so does your engine's efficiency.
High load and low rpm is where it gets its BSFC after all ...
Even if it uses more fuel/mile, it's producing the horses required to get up there more efficiently.
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That sounds like a pulse in the climb, not DWL, they are opposing techniques.
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Originally Posted by euromodder
Try DWL instead of CC for a few tanks.
It will give you improved MPG  |
I've been playing with it, but I don't typically use CC locally anyway.