Green Car Congress

APRIL 25, 2016

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 One of the benefits of DSF is the wide range of firing pattern selections to minimize the resonance modes.

Fuel Economy 150

Fuel Economy Economy GM GMC 150

Green Car Congress

DECEMBER 16, 2020

The result is that the engine dynamically fires the optimal number of cylinders to maximize fuel economy while maintaining a smooth ride with commercial levels of noise and vibration. Because each combustion event is selected to allow optimal efficiency, DSF reduces fuel and CO 2 , and for diesel applications, NO x emissions.

Yukon 186

Yukon Vehicles Escalade Sierra 186

Green Car Congress

JULY 18, 2014

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 As with other EcoTec3 engines, it seamlessly switches to four-cylinder operation under lighter loads to improve fuel economy.

GMC 210

GMC Chevrolet 2015 Yukon 210

Green Car Congress

SEPTEMBER 24, 2012

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. However, rivets add cost and riveting guns have a limited range of joint configurations.

GM 268

GM Yukon Tahoe Fuel Economy 268

Clean Fleet Report

MAY 22, 2021

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 Test Procedures.

Diesel 93

Diesel Emissions Fuel Economy Yukon 93

Green Car Congress

JANUARY 28, 2010

Car buyers shouldn’t be forced to buy high-end bells and whistles when fuel economy and reducing emissions are their top priority. Size was not an issue, since UCS awarded high ratings to vehicles ranging from compact cars to luxury sedans to full-sized SUVs. Hybrids don’t have to be luxury vehicles.

LS 600H 236

LS 600H Hybrid Civic Hybrid Fusion 236