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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

Green Car Congress

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 Meaning, DSF reduces fuel consumption by 14-18% over V8. liter V8 by operating using Dynamic Skip Fire.

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

Green Car Congress

Icom North America, a developer and manufacturer of liquid-injection propane (autogas) systems for commercial and consumer vehicles, has received 17 new US Environmental Protection Agency (EPA) certifications for its patented JTG II Propane Liquid Injection bi-fuel systems. The GMC-brand vehicles include Sierra, Yukon and Savana vans.

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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. —Blair Carlson, GM manufacturing systems research lab group manager.

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Tech: New Technology Reduces Diesel Emissions

Clean Fleet Report

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 software upgrade doesn’t require any hardware changes to the motor or vehicle.

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2024 Lexus TX Hopes to Become a Better Family Hauler

The Truth About Cars

But that’s the point, as the manufacturer was clearly trying to maximize interior volume without sacrificing cargo. The infiniti QX80 and GMC Yukon are a little too big, while something like the Acura MDX is a little too small. liter to 362 horsepower thanks to dual electric motors offering default all-wheel drive.

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UCS Hybrid ScoreCard Dings Automakers for Forced Features in Hybrid Offerings

Green Car Congress

Car buyers shouldn’t be forced to buy high-end bells and whistles when fuel economy and reducing emissions are their top priority. Ford, General Motors, Honda and Toyota all sell models with high hybrid value ratings, UCS noted. Hybrids don’t have to be luxury vehicles.

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

Green Car Congress

The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L increase in fuel economy over the previous six-speed automatic—and a quicker 0-60 time of 3.7

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