wow. I hardly drive 22 miles at 50mph. But it makes sense since there is no engine to heat up the oil, the oil only heats up when you are moving and when you're moving there is cooling (kinda like driving without a thermostat, the engine never heats up/looses heat while moving).
On another topic, the suburban probs has 13quarts of transmission fluid, meaning 3 gallons and pumps at least 1 gallon at a time and on top its cold & thick. You can do the math on that, but I'd say an alternator or two of drag or 10-20%.
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