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:

    On the Road
    Automakers are getting better at finding middle ground between the extremes — nimble handling with reasonably good ride comfort, for example. The Wrangler is old-school; it swings unapologetical ...

    Prepare A List
    Make a written list of your vehicle’s problems or the specific work you want done. If you’ve had an accident or work done that is not on your maintenance log, let the service advisor know. ...

    Power Switch/Volume Control (Rotary)
    Push the ON/VOLUME control knob to turn on the radio. Push the ON/VOLUME control knob a second time to turn off the radio. ...