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GM: new Sierra 5.3L V-8 EcoTec3 highway fuel economy tops Ford EcoBoost V-6

Green Car Congress

V-8 EcoTec3 AFM VVT DI (L83) for Chevrolet Silverado and GMC Sierra. The 2014 GMC Sierra 1500 full-size pickup truck features a new 5.3L EcoTec3 V-8 engine ( earlier post ) equipped with direct injection, cylinder deactivation (AFM) and variable valve timing to achieve EPA estimates of 16 mpg city (14.7 Fuel economy.

Sierra 262
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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. V-8 and 6.2L

GMC 210
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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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New GM EcoTec3 engine family for 2014 Silverado and Sierra pickups; direct injection, cylinder deactivation and CVVT

Green Car Congress

V-6 EcoTec3 AFM VVT DI (LV3) for Chevrolet Silverado and GMC Sierra. The newly unveiled 2014 Chevrolet Silverado 1500 and GMC Sierra 1500 pickup trucks will deliver more power, more torque and improved fuel efficiency, partly due to a trio of all-new EcoTec3 engines designed specifically for the needs of full-size truck customers.

Sierra 218
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GM Testing Indicates 2010 Chevrolet Equinox Will Offer Best-In-Segment Highway Fuel Economy of 32 mpg

Green Car Congress

liter I-4 engine will offer an EPA estimated 32 mpg on the highway and 22 mpg city. At 32 mpg, the 2010 Equinox will offer best-in-segment highway fuel economy and have a highway driving range of up to 600 miles. Continuously variable valve timing (VVT) optimizes the engine. Click to enlarge. The 2010 Ecotec 2.4L

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Emissions testing shows Lighting Hybrids hydraulic hybrid drive delivers significant reduction in NOx, up to 18% improved fuel consumption

Green Car Congress

Broadly, the test results show significant reductions in NO x , particularly against a non-hybrid diesel baseline, and fuel economy improvements of up to 18% for the vehicle and under the drive cycles tested. The hybrid vehicle under test was a 2010 GMC 3500/4500 Savana Cutaway with a GM 6.0

Hybrid 150
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Road Test: 2021 Cadillac Escalade Duramax 4WD

Clean Fleet Report

I have driven several Chevrolet and GMC vehicles with the wonderful Duramax turbodiesel engine, so expectations were high for a luxury week behind the wheel. Power and Torque and Fuel Sipping. liter Duramax turbodiesel engine. Stand next to the hood when the engine is at idle, and you will be amazed at how quiet it is.