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I agree that 4500 rpm is too high. I haven't seen that in over a year.
The advantage of pulsing uphill is that it's easier to put the engine into a high-load operating range. You have to accelerate very quickly to get that load downhill, or you use a lower-load, less efficient range. Also, like mentioned above, aero drag and reasonable speeds become an issue with pulsing downhill.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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