The 2019 Chevrolet Silverado 1500 and 2019 GMC Sierra 1500 won’t be the only GM vehicles to feature the automaker’s reborn Tripower powertrain. The 2019 Cadillac XT4 will also include the fuel-saving technologies.
Green Car Congress reported Thursday that the 2.0-liter LSY turbocharged four-cylinder engine has three different operating modes: a four-cylinder performance mode, four-cylinder eco mode and a two-cylinder eco mode for extra frugal driving. GM’s new Tripower has everything to do with efficiency and not performance, as it stood for in the mid-20th century.
Specifically, any Tripower engine includes cylinder deactivation, active thermal management (ATM) and intake valve lift control.
The new turbo-four engine is also the first application of active fuel management for a four-cylinder mill via a new dual overhead cam design. Also onboard is an active thermal management (ATM) system to precisely control the coolant flow.
A high-pressure direct injection system, twin-scroll turbo and integrated exhaust manifold bolster thermal efficiency via ATM; they also help warm the engine and transmission up more quickly for quicker turbo response.
Finally, an active oil management system works with the transmission and start/stop system to reduce fuel consumption by another 3 to 5 percent.
The XT4 will launch in the United States this fall, but the brand first plans to roll the compact luxury crossover out in China this month.