2012 Jeep Wrangler to Get More Powerful and Efficient Pentastar V6, 5-Speed Auto

Harry Lay
by Harry Lay

The Jeep Wrangler will finally get the Chrysler 3.6-liter Pentastar V6 for the 2012 model year. Since 2007, the Wrangler has used the 3.8-liter V6 engine, which replaced the bullet proof 4.0-liter inline six.

New transmission hardware has also arrived for the Wrangler as it will forgo the ancient four speed automatic for a five-speed unit. A little late in the game, as many automakers are upgrading to seven and eight speed transmissions.

Regardless of preference, the 2012 Wrangler’s powerplant will be identical to the units in the 2011 Grand Cherokee. The V6 should produce 290-hp and 260 lb-ft of torque. The 3.8-liter produced a meager 202-hp and 237 lb-ft of torque. Fuel mileage is expected to improve to 16-mpg city, 23-mpg highway from 15/19.

GALLERY: 2012 Jeep Wrangler

[Source: Toledo Blade]

Click here to read AutoGuide’s 2011 Jeep Wrangler Review

Harry Lay
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  • Bob foss Bob foss on Jun 02, 2011

    @dave: Actually, you're both right. The GC is going to a 6 speed as you said, but the author said "identical to the 2011 Grand Cherokee". The 2011 GC did have a 5 speed. Besides the Pentastar and 5 speed, the Wrangler is supposed to get a revised front and windshield, more aerodynamic, the two-door Wrangler's wheelbase will be up one-tenth of an inch according to allpar. Finally, the Wrangler is supposed to get an electro-hydraulic power steering system. I don't know what that is...I'd rather have an electric system like Ford is doing.

  • Sal Sal on Jun 04, 2011

    Well speaking on the wrangler here all that power means nothing if it's delivered at 4500 RPM's the wrangler needs that torque between 1500 and 2500 RPM's to be useful. As for the power steering comment, ford doesn't build any vehicle designed for what the wrangler is put threw. If you ever tried turning you wheels while pointing straight down wedged into a rock face you would know what I mean with fords system nothing would move.