See also:

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. ...

Reformulated Gasoline
Many areas of the country require the use of cleaner burning gasoline referred to as “Reformulated Gasoline.” Reformulated gasoline contains oxygenates and are specifically blended to reduce ...

Powertrains
The all-new 2011 Jeep Grand Cherokee is available with two leading engine options for North American markets. The 2011 Jeep Grand Cherokee's standard engine is an all-new flexible fuel 3.6-liter ...