See also:

Premium Performance
Continuing to build on the Jeep brand's legendary off-road capability, the all-new 2011 Grand Cherokee adds premium on-road performance to complete the package. The all-new 2011 Jeep Grand Chero ...

Engine Oil Viscosity – 5.7L Engine
SAE 5W-20 engine oil is recommended for all operating temperatures. This engine oil improves low temperature starting and vehicle fuel economy. The engine oil filler cap also shows the recommende ...

Extreme Cold Weather (Below –20°F Or 29°C)
To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your authorized dealer) is recommended. ...