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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. Eisazadeh-Far and Younkins (2016).

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GM big SUV buyers to be compensated for wrong fuel economy on window stickers

Green Car Reports

General Motors will compensate owners of three large crossover SUV models for misstated fuel economy on window stickers. Last week, GM issued a stop-sale order for the 2016 Buick Enclave, Chevrolet Traverse, and GMC Acadia. DON'T MISS: Gas-mileage.

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EPA annual trends report finds new vehicle fuel economy at record 24.1 mpg; new powertrain technologies rapidly gaining share

Green Car Congress

EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. Fuel economy has now increased in eight of the last nine years; average carbon dioxide emissions are also at a record low of 369 g/mile in model year 2013.

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Argonne releases new cradle-to-grave lifecycle analysis of US LDV vehicle-fuel pathways

Green Car Congress

This analysis builds on a previous comprehensive life cycle analysis, updating that study’s 2016 assumptions and methods. fuel sales tax) and/or credits (e.g., By far the largest and the most consequential change in the input assumptions between the 2016 study and this current update is in battery costs for BEVs.

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2016 Chevy Colorado, GMC Canyon Take Truck Fuel-Efficiency Crown At 25 MPG

Green Car Reports

The 2016 Chevrolet Colorado and GMC Canyon mid-size pickup twins, fitted with the newly-available Duramax four-cylinder diesel engine, are now the most fuel-efficient pickup trucks sold in the U.S.

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Bob Lutz on Bolt EV, 2016 Chevy Cruze gas mileage, VW sales decline: Today's Car News

Green Car Reports

Today, former General Motors car czar calls the 2017 Chevrolet Bolt EV electric car a "compliance car," the 2016 Chevrolet Cruze outperforms the previous version in fuel economy, and U.S. Volkswagen sales continue to suffer as a result of the ongoing diesel scandal. All this and more on Green Car Reports.

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BorgWarner delivers advanced technologies for new GM 8-speed transmission; stop-start

Green Car Congress

BorgWarner supplies Eco-Launch stop/start accumulator technology and multi-segment wet friction plates for the new 8-speed rear-wheel drive automatic transmission (8L45) from General Motors. Stop/start systems increase fuel economy by turning the engine off when the vehicle stops.

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