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Old 06-08-2019, 09:44 AM   #21 (permalink)
Master EcoModder
Join Date: May 2012
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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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I believe the engine must run at higher speeds even when not accelerating to run the trans fluid pump.

These engines don't have a lean burn, but the cam is special and allows LIVC, late intake valve closing.


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