Jeep Returns to Inline-Six Engines: New GME-T6 Debuts In April

Jeep Wagoneer 2022

An all-new 3.0-liter inline-six-cylinder turbocharged engine, codenamed “GME-T6”, will power the Jeep Wagoneer/Grand Wagoneer lineup. The unit debuts next month.

It seems Jeep’s iconic 4.0-liter inline-six engine that was used from 1987 to 2006 and provided good acceleration from low speeds in the Wranglers and Cherokees will get a reincarnation.

We are not talking about returning the same engine, but about a new variant – a 3.0L GME-T6 from the Stellantis Global Medium Engine (GME) family. Stellantis plants to equip its new vehicles with this engine and the first Jeeps to have it are the Wagoneer family.

The company will show the GME-T6 at the New York International Auto Show on April 15-24, 2022. Three versions of the new engine are expected: GME-T6 H.O. (high-output), its lower output variant, and GME-T6 PHEV (plug-in hybrid).

The first, requiring premium 91 octane fuel, debuts on a Wagoneer next month at the event in New York. The second, running on regular 87 octane fuel, will be available later; and the third, plug-in hybrid model with the 4xe nameplate, will follow in 2023.

As for the power output of this new inline-6, it should be comparable to Jeep’s 5.8L V8 that delivers from 357 to 392 horsepower. Mopar Insiders suggest the GME-T6 PHEV can be fitted to a ZF 8-speed automatic transmission (8P75PH) and an eTorque motor-generator.

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