Summer Operation

The engine cooling system in air-conditioned vehicles must be protected with a high-quality antifreeze coolant to provide proper corrosion protection and to protect against engine overheating. A solution of 50% ethylene glycol antifreeze coolant and 50% water is recommended.

Refer to “Maintenance Procedures” in “Maintaining Your Vehicle” for proper coolant selection.

    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. ...

    Transmitter Battery Replacement
    The recommended replacement battery is CR2032. NOTE: Perchlorate Material – special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate 1. With the RKE transmitter buttons facing do ...

    Overview
    Jeep introduces the all-new 3.6-liter Pentastar V-6 petrol engine that will be equipped on the 2012 Jeep Wrangler and Jeep Wrangler Unlimited. 3.6-liter V-6 powertrain provides more fuel efficienc ...