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Old 01-30-2022, 09:33 PM   #76 (permalink)
Gasoline Fumes
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CRXFi - '88 Honda CRX XFi

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Quote:
Originally Posted by EcoCivic View Post
Always used 5th gear to start it. When I was using pulse and glide I was usually bump starting it at between 40 and 50 MPH so around 1600-2000 RPM. When coasting to a stop with the engine off, I'd put it in 5th to start it once I'm down to around 15-20 MPH although I'm sure it would have started a bit lower than that. As you said, the engine doesn't have to spin very fast to start.
That might be a bit fast for bump starting. If I'm doing pulse and glide, 40-50 MPH is usually where I'd be shutting the engine off, not starting it. That could be why you didn't see an improvement in MPG too. I think it works better at lower speeds. I usually only coast to stops and downhill if it's not so steep that I need to brake. I tried a constant P&G in my old Civic and didn't see an improvement either. It might work better on overpowered cars, or at very low speeds.
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