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Old 03-12-2018, 10:13 PM   #18 (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
90 day: 21.48 mpg (US)
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Originally Posted by ProDigit View Post
That's how the volt operates. It's engine always charges the battery, while the battery powers the electric motors.
On the volt you don't have the choice to drive the gasoline engine directly.

And I think that's the question of this thread,
How much does driving the gasoline engine give on MPG.
The engine will operate to keep the battery at a particular state of charge then adjust output depending on driving conditions. If the load is low enough that the battery level rises, the engine shuts off and runs on battery until it drops below a certain threshold.

So, long drives in CS mode actually show gas only mode mpg very well. The battery isn't supplying power, it is being used as a buffer.

Last edited by ksa8907; 05-09-2018 at 10:57 PM..
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