2009 Dodge Viper Owner Manual - Page 207
2009 Dodge Viper Manual
Page 207 highlights
MAINTAINING YOUR VEHICLE 205 Engine Oil Selection For best performance and maximum protection under all types of operating conditions, the manufacturer only recommends full synthetic engine oils that meet the American Petroleum Institute (API) categories of SM or SM/CF, and meet the requirements of Chrysler Material Standard MS-10725. The manufacturer recommends the use of a full synthetic engine oil, such as Mobil 1 SAE 0W-40 or equivalent. Engine Oil Viscosity (SAE Grade) SAE 0W-40 engine oil is preferred for use within the operating temperature shown in the engine oil viscosity chart. 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. The engine oil filler cap also shows the recommended engine oil viscosity for your engine. For information on engine oil filler cap location, refer to "Engine Compartment" in this section. 7
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