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LPG system provider Icom earns 17 new EPA certifications For GM vehicles

Green Car Congress

The EPA certifications allow Icom to convert these popular fleet vehicles in the US market for propane/autogas bi-fuel use. The GMC-brand vehicles include Sierra, Yukon and Savana vans. Icom’s JTG II system is now available for more than 400 vehicle platforms, the most of any liquid-injection system in the US market.

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GM resistance spot welding process joins aluminum to aluminum

Green Car Congress

General Motors Research & Development developed an aluminum-to-aluminum welding technology expected to enable more use of the lightweight metal on future vehicles, which can help improve fuel economy and driving performance. GM plans to use this technology more extensively starting in 2013.

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Tula Technology hits milestone of 1M vehicles produced with Dynamic Skip Fire

Green Car Congress

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. Because each combustion event is selected to allow optimal efficiency, DSF reduces fuel and CO 2 , and for diesel applications, NO x emissions.

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Consumer Reports: Tesla and other domestic brands take big steps backwards in reliability rankings

Green Car Congress

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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2024 Lexus TX Hopes to Become a Better Family Hauler

The Truth About Cars

The infiniti QX80 and GMC Yukon are a little too big, while something like the Acura MDX is a little too small. But that’s a good place for a new vehicle to be when the market is receptive.& liter V6 gasoline engine for a very agreeable 406 horsepower and 30 mpg combined fuel economy.

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