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Caddy Crossover to Get “Tripower” Engine Tech


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General Motors Co. will introduce its new Tripower engine system later this month in a 2.0-liter turbocharged 4-cylinder mill for the Cadillac XT4 crossover vehicle in China.

GM announced the technology last week at the Management Briefing Seminars in Traverse City, Mich. The package, which revises GM’s historic Tri-Power name (minus the hyphen), teams cylinder deactivation, active thermal management and variable intake valve lift.

GM also will use the Tripower system in a 2.7-liter four-banger this autumn in the U.S. in its 2019 Chevrolet Silverado and GMC Sierra pickup trucks. That engine will kick out 310 hp and 348 lb-ft of torque.

The XT4’s 2.0-lter engine uses a double overhead cam valvetrain, which GM says enables the first use of the company’s latest cylinder deactivation technology on a four-cylinder engine. The engine can use all four cylinders to operate in either performance or eco modes, or only use two cylinders in “super-eco” mode, according to the carmaker.

Active thermal management enhances fuel economy with an electric water pump and ball valve modules to more precisely control coolant flow and engine temperature.

The 2.0-liter engine produces 177 hp and 258 lb-ft of torque. Other features include a twin-scroll turbocharger and integrated exhaust manifold to help reduce turbo lag.

GM last used the Tri-Power name in the 1966 Pontiac GTO V-8-powered muscle car. The original nomenclature referenced three two-barrel Rochester carburetors.

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