If you spent some hard-earned money on a newer Jeep in the last several years, chances are it has a 3.6-liter Pentastar. Here's what you should know about it.

The Pentastar engine to be used in the redesigned Grand Cherokee is rated at 280 hp and 260 lb-ft of torque, compared with 210 hp and 235 lb-ft of torque in the current Grand Cherokee's V6 engine.