Green Car Congress
APRIL 25, 2016
In a paper presented at the 2016 SAE World Congress, Tula Technology, developer of Dynamic Skip Fire (DSF) cylinder deactivation technology, reported significant fuel economy gains of up to 18% over a conventional GM 6.2-liter The base engine is used by General Motors in many applications, among them, the 2010 GMC Yukon Denali.
Green Car Congress
DECEMBER 16, 2020
The result is that the engine dynamically fires the optimal number of cylinders to maximize fuel economy while maintaining a smooth ride with commercial levels of noise and vibration. Tula’s proprietary technology is being used in the top-selling Cadillac Escalade, Chevrolet Silverado and Suburban, and the GMC Sierra and Yukon.
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 As with other EcoTec3 engines, it seamlessly switches to four-cylinder operation under lighter loads to improve fuel economy.
Green Car Congress
AUGUST 8, 2012
The GMC-brand vehicles include Sierra, Yukon and Savana vans. The JTG II system often delivers substantial fuel economy improvements when compared to propane-vapor-injection systems, as well as increased power, torque and performance, according to the company. Icom’s total number of EPA certifications now stands at 40.
Green Car Congress
APRIL 5, 2009
The five-passenger crossover SUV, which shares the Theta chassis with the Chevrolet Equinox, offers estimated highway fuel economy of 30 mpg (7.8 City fuel economy is estimated to be 21 mpg US (11.2 Maximum fuel economy is achieved in part with an “ECO” mode activated via a console-mounted button. Also available will be a 3.0L
Clean Fleet Report
MAY 22, 2021
A new technology may take the already quite clean (especially compared with engines of just a little more than a decade ago) engines to a level that reduces smog-producing emissions while increasing fuel economy and yet not losing any performance. The Test Procedures.
Green Car Congress
OCTOBER 25, 2018
Consumer Reports’ survey also reveals that some automakers—striving for improved fuel economy—are clearly making more reliable turbocharged engines than others. GMC inches up one spot to number 25 due to average or above reliability for the Terrain, Yukon, and Yukon XL. —Jake Fisher.
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