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Old 07-23-2015, 10:19 PM   #4 (permalink)
Master EcoModder
Join Date: May 2012
Location: Tampa, FL
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Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
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If the engine is cold it will be in high idle so you can "drive" at slow speeds without even using the throttle. As stated, when it is below 0f it is a good idea to allow the engine to run for a short time to get things loosened up and fluid moving. Dont forget that the transmission can receive just as much wear in extreme cold.

I regularly start the car and throw it in drive within 3 seconds. Immediately after firing the engine is running too fast imo to put it in gear.

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