Jeep Wrangler gets new powertrain line-up for 2018

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Jeep has revealed its revamped 2018 Wrangler at the Los Angeles Auto Show, including an all-new engine line-up. The American auto maker has added a 3.0-liter EcoDiesel V6 and a completely new 2.0-liter turbocharged inline four-cylinder engine, while the 3.6-liter Pentastar V6 engine has been given an upgrade.

Mated to a new 8-speed automatic transmission, the 2.0-liter turbocharged inline four-cylinder engine with eTorque technology will develop 273ps and 295 lb-ft. of torque. It will also improve fuel economy and launch performance, thanks to an all-new eTorque system, which includes electric power assist, extended fuel shut-off, transmission shift management, intelligent battery charging and regenerative braking.

Fitted with a twin-scroll, low-inertia turbocharger with an electronically actuated wastegate, the 2.0-liter motor enables responsiveness and performance, even over difficult terrain. The engine’s fuel pump supplies the engine’s 2,900psi high-pressure common-rail injection system. These high pressures produce better fuel atomization and allow for more precise fuel delivery than port fuel-injection systems; this means both performance and efficiency is improved.

The 3.6-liter Pentastar V6 engine will deliver 285ps and 260 lb-ft of torque and is engineered to provide a broad torque band with a focus on low-end torque. An all-new 6-speed manual transmission is standard on all Wrangler models equipped with the V6, while the 8-speed automatic transmission is optional.

Available from 2019, the 3.0-liter EcoDiesel engine is rated at 260ps and 442 lb-ft of torque. It is equipped with a new 8-speed automatic transmission, which has been redesigned to handle the increased torque output.

Thanks to new low-friction bearing turbocharger technology, the diesel unit is designed for low-end and transient performance. Upgraded low-friction pistons improve fuel economy and reduce emissions, while the enhanced combustion system includes a new injector nozzle, piston bowl and glow plug with integrated combustion pressure sensor to optimize combustion.

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Sam joined the UKi Media & Events automotive team in 2017. Having started out as assistant editor for a number of titles including Automotive Powertrain Technology International, Automotive Testing Technology International and Professional Motorsport World, he was appointed editor of PTI in 2020. Sam produces content for both the magazine and website.

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