2008 Dodge Nitro Owner Manual - Page 356
2008 Dodge Nitro Manual
Page 356 highlights
356 MAINTAINING YOUR VEHICLE Engine Oil Selection For best performance and maximum protection for all engines under all types of operating conditions, the manufacturer 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 Engine) SAE 5W-20 engine oil is recommended for all operating temperatures. This engine oil improves low temperature starting and vehicle fuel economy. Your engine oil filler cap shows the recommended engine oil viscosity for your vehicle. Lubricants which do not have both, the engine oil certification mark and the correct SAE viscosity grade number should not be used. Engine Oil Viscosity (4.0L Engine) The proper SAE viscosity grade of engine oil should be selected based on the following recommendation and be within the operating temperature shown in the engine oil viscosity chart.