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Old 01-14-2011, 05:15 PM   #2 (permalink)
UFO
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Join Date: Sep 2010
Location: Denver, CO
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Colorado - '17 Chevrolet Colorado 4x4 LT
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That's exactly how to P&G a diesel, as it has no throttle and it's most efficient at the torque peak, usually around 2000 rpm.

I can't do that with my automatic, and as a result, I don't P&G except at low speeds on side streets where I glide to an intersection. At higher speeds I just make sure my torque converter is in lockup (>40mph), and either engine brake to a stop or put the transmission in neutral depending on how far ahead and the slope to the next intersection.
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I'm not coasting, I'm shifting slowly.
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