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:

    Reformulated Gasoline
    Many areas of the country require the use of cleaner burning gasoline referred to as “Reformulated Gasoline.” Reformulated gasolines contain oxygenates, and are specifically blended to reduc ...

    Engine Oil Filter
    The engine oil filter should be replaced with a new filter at every engine oil change. Engine Oil Filter Selection All of the manufacturer’s engines have a full-flow type disposable oil filter. ...

    Under the Hood
    Four-cylinder and V-6 engines are available for the Liberty. A 150-horsepower, 2.4-liter Power Tech four-cylinder is standard in the Sport model. A 210-hp, 3.7-liter V-6 produces 235 pounds-feet o ...