Engine, Exhaust and Yukon

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Engine

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Yukon

2015 Chevrolet and GMC pickups, SUVs to offer eight-speed transmission with EcoTec3 V-8

Green Car Congress

JULY 18, 2014

Chevrolet and GMC have confirmed a new eight-speed automatic transmission will be standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L The 8L90 also enables numerically lower rear axle ratios, which reduce engine rpm on the highway. EcoTec3 V-8. Click to enlarge.

GMC

GMC Chevrolet 2015 Yukon

Tula Technology reports up to 18% fuel economy gain in GM 6.2L V8 using Dynamic Skip Fire technology; emissions benefits too

Green Car Congress

APRIL 25, 2016

DSF—a software-enabled powertrain technology that integrates advanced digital signal processing with advanced powertrain controls—reduces the pumping losses while improving the combustion stability in spark ignition engines. V8 engine, modified by Tula to be compatible with Dynamic Skip Fire. Earlier post.) Earlier post.).

Fuel Economy

Fuel Economy Economy GM GMC

EV Driven

2015 Chevrolet and GMC pickups, SUVs to offer eight-speed transmission with EcoTec3 V-8

Tula Technology reports up to 18% fuel economy gain in GM 6.2L V8 using Dynamic Skip Fire technology; emissions benefits too

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