2008 Jeep Commander Owner Manual - Page 390
2008 Jeep Commander Manual
Page 390 highlights
390 MAINTAINING YOUR VEHICLE CAUTION! Overfilling or underfilling the crankcase will cause aeration or loss of oil pressure. This could damage your engine. Change Engine Oil Refer to the Maintenance Schedule for recommended engine oil change intervals. Engine Oil Selection For best performance and maximum protection for all engines under all types of operating conditions, the manufacturer only recommends engine oils that are API Certified and meet the requirements of DaimlerChrysler Material Standard MS-6395. American Petroleum Institute (API) Engine Oil Identification Symbol This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils. Engine Oil Viscosity (3.7L/4.7L/5.7L Engines) SAE 5W-20 engine oil is recommended for all operating temperatures. This engine oil improves low temperature starting and vehicle fuel economy. The engine oil filler cap also shows the recommended engine oil viscosity for your vehicle. For information on engine oil filler cap location, refer to the "Engine Compartment" illustration in this section.
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