Engine Fuel Economy Motors Yukon 
Green Car Congress
DECEMBER 16, 2020
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.
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 Meaning, DSF reduces fuel consumption by 14-18% over V8. liter V8 by operating using Dynamic Skip Fire.
Green Car Congress
AUGUST 8, 2012
Icom North America, a developer and manufacturer of liquid-injection propane (autogas) systems for commercial and consumer vehicles, has received 17 new US Environmental Protection Agency (EPA) certifications for its patented JTG II Propane Liquid Injection bi-fuel systems. liter engines.
Clean Fleet Report
MAY 22, 2021
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.
The Truth About Cars
JUNE 9, 2023
The infiniti QX80 and GMC Yukon are a little too big, while something like the Acura MDX is a little too small. liter to 362 horsepower thanks to dual electric motors offering default all-wheel drive. However, it’s not so much focused on saving fuel as it is promoting fun. But all-wheel drive is likewise available.&
The Truth About Cars
SEPTEMBER 12, 2023
Like other GM cars (even high-end Yukon Denalis) the Malibu does not have touch-sensitive keyless entry, but relies on the 2006-era door Chiclet to lock and unlock. Paired to a CVT, in most situations the engine provides plenty of power and is fully supported by the transmission. The doors shut with a reassuring, quality sound.
Green Car Congress
AUGUST 21, 2014
The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L increase in fuel economy over the previous six-speed automatic—and a quicker 0-60 time of 3.7
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