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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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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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GM Ventures portfolio company SDCmaterials secures 1st supply agreement for cost-saving advanced catalyst products for autos

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Investors in SDCmaterials include the venture capital arms of General Motors, Volvo Group, and SAIC Motor as well as BASF Venture Capital. Further advancements in automotive fuel economy. Engine designs for fuel economy can result in reduced exhaust temperatures.

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2012 Chevy Sonic with 1.4L Turbo delivers 40 mpg on highway

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L/100km) on the highway with a six-speed manual transmission and city fuel economy of 29 mpg (8.1 The Sonic’s highway fuel economy makes it one of the most fuel-efficient small cars in the market, with fuel economy equivalent to the 2012 Ford Fiesta SFE and on a par with the 2012 Hyundai Accent.

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Chevrolet introduces Colorado Duramax Diesel midsize pickup

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With 369 lb-ft of torque (500 N·m) generated by the all-new 2.8L Duramax turbo-diesel, the Colorado’s maximum trailering capacity rises to 7,700 pounds (3,492 kg) on 2WD models, with estimated fuel economy projected by GM to top the already segment-leading efficiency of the gas models (27 mpg (8.7 The Duramax 2.8L

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T&E: VW sells least polluting Euro 6 diesels in Europe; no brand meets Euro 6 in real-world driving; loopholes & defeat strategies

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Among the real-world findings per car brand: Fiat and Suzuki diesel cars on average exceed the NO x limit by 15 times; Renault-Nissan vehicles by more than 14 times; General Motors’ brands Opel/Vauxhall by 10 times; and. VW Group’s Dieselgate engines were mostly of the previous Euro 5 generation. Volkswagen by 2 times.

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New GM/Tula DSF cylinder deactivation technology could boost fuel efficiency in engines by up to 15%

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Comparison of DSF fuel economy gains and costs with competing technologies, from Tula’s 2013 SAE paper. In their 2013 SAE paper, the Tula engineers described two primary benefits from dynamic skip fire technology: Fuel economy improvement via removal of pumping losses and optimization of combustion. Wilcutts et al.

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DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

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will design and develop a new more-efficient engine and advanced drivetrain and vehicle technologies. will design and develop a vehicle and powertrain with electrified engine components that can enable higher engine efficiency and a significantly more aerodynamically reengineered cab. General Motors. Navistar, Inc.

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