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

Green Car Congress

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. V-8 and 6.2L

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First natural gas GM half-ton pickups with 5.3L DI engines delivered in Texas

Green Car Congress

liter direct injection engine. The 2015 model vehicles were purchased by local Houston company NewTex Plumbing and San Antonio-based Pioneer Energy Services. liter engine, AGA Systems has also started shipping the DuraDrive DI for GM’s 6.2 direct injection engine. l/100 km) highway. In addition to supporting the 5.3-liter

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GM offering magnetic ride control on Sierra Denali pickup

Green Car Congress

GM is offering magnetic ride control on the 2015 GMC Sierra Denali; it’s the first time the advanced, electronically controlled damping system has been offered on a full-size truck. V-8 (420 hp)—the segment’s most powerful engine. More than 675,000 Denali models have been sold since the introduction of the 1999 Yukon Denali.

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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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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. In 2015, Delphi also took a stake in the Silicon Valley-based company. Earlier post.)

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J.D. Power study finds ACEN technology woes affecting vehicle reliability for consumers

Green Car Congress

The number of engine/transmission problems decreased to 24 PP100 in 2016 from 26 PP100 in 2015. Design-related problems account for 39% of problems reported in the study (60 PP100), a 2-percentage-point increase from 2015. The study was fielded from October through December 2015.

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Details on GM’s new efficient top-end 8-speed automatic

Green Car Congress

2015 Hydra-Matic 8L90 (M5U) Eight Speed RWD Automatic Transaxle Click to enlarge. GM is offering a version of its new GM-developed Hydra-Matic 8L90 paddle-shift eight-speed automatic transmission in the 2015 Corvette Stingray ( earlier post ) and Z06. In the 2015 Corvette Stingray, the new 8-speed enables a class-leading 29-mpg (8.1

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