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:

    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 ...

    Selection Of Engine Coolant
    Use only the manufacturer’s recommended engine coolant (antifreeze). Refer to “Fluids, Lubricants, and Genuine Parts” in “Maintaining Your Vehicle” for further information. CAUTION! ...

    Brake System
    In order to assure brake system performance, all brake system components should be periodically inspected. Refer to the “Maintenance Schedule” for the proper maintenance intervals. WARNING! ...