<P> Four wheel drive systems include Quadra - Trac I, Quadra - Trac II, and Quadra - Drive II . Using Selec - Terrain, the driver can select modes for Auto, Sport, Snow, Sand / Mud, and Rock . </P> <P> Optional Quadra - Lift height adjustable air suspension can raise the vehicle's ground clearance up to 11.1 in (282 mm). Lift modes include Park, Aero, Normal Ride Height, Off - Road 1, and Off - Road 2 . </P> <P> Engine choices include the all new 3.6 L Pentastar V6 and 5.7 L Hemi V8 . The Hemi V8 retains the Multiple Displacement System (MDS) that shuts down four cylinders in low - power driving situations . The V8 comes with the multi-speed automatic transmission that includes Electronic Range Selection (ERS) to manually limit the high gear operating range . Trailer towing is rated 7,400 lb (3,400 kg) for Hemi models and 5,000 lb (2,300 kg) for Pentastar models . A 3.0 L turbocharged diesel V6 developed and built by Fiat Powertrain Technologies and VM Motori (with Multijet II injection) rated at 177 kW (241 PS; 237 hp) and 550 N m (410 lb ft) of torque offered in export markets from mid-2011 . The new 3.0 L CRD turbodiesel engine is available in European markets as 140 kW (190 PS; 188 hp) low - power version . </P> <P> The new Grand Cherokee SRT8, which started production on July 16, 2011, is equipped with a 470 hp (350 kW; 480 PS) 6.4 L Hemi V8 engine . Jeep claims the new SRT8 gets 13 percent better fuel economy than its predecessor . To keep the gas mileage respectable, Jeep has employed a new active exhaust system that lets Chrysler's cylinder - deactivating Fuel Saver Technology operate over a wider rpm band . Chrysler claims that with the larger gas tank, the SUV can now travel up to 500 miles (800 km) on a single tank, while other sources estimate range to be 450 miles (720 km). </P>

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