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

Green Car Congress

Unlike cylinder deactivation strategies that shut off a fixed number of cylinders, DSF makes dynamic firing decisions every 90 degrees of crank angle on a V8 (180 degrees on a 4 cylinder engine) based on how much torque is requested. DMD, for example, uses pulses of motor operation at high motor efficiency to deliver requested torque.

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2015 Chevrolet and GMC pickups, SUVs to offer eight-speed transmission with EcoTec3 V-8

Green Car Congress

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 The 8L90 also enables numerically lower rear axle ratios, which reduce engine rpm on the highway. EcoTec3 V-8. Click to enlarge.

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

Green Car Congress

liter engines. 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. The JTG liquid-propane injection application is a fully-integrated, mono-fuel or bi-fuel engine system.

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Tech: New Technology Reduces Diesel Emissions

Clean Fleet Report

According to dozens of automotive story headlines, the internal combustion engine, running on gasoline or diesel, is dead or dying as customers, auto companies and investors flock to electric powertrains. While 2045 may still be more than two decades away, emissions advances in internal combustion engines (ICE) are continuing.

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GM to Introduce 2010 GMC Terrain at New York Show

Green Car Congress

The five-passenger crossover SUV, which shares the Theta chassis with the Chevrolet Equinox, offers estimated highway fuel economy of 30 mpg (7.8 L/100km) from its 2.4L, four-cylinder Ecotec direct injection engine. City fuel economy is estimated to be 21 mpg US (11.2 Also available will be a 3.0L

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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. liter V6 gasoline engine for a very agreeable 406 horsepower and 30 mpg combined fuel economy. & At a smidgen over 203 inches long, the TX doesn’t seem to have any direct competitors.

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