2010 Dodge Ram 1500 Regular Cab Owner Manual - Page 518

516 MAINTAINING YOUR VEHICLE NOTE: Under no circumstances should oil change intervals exceed 6,000 miles (10 000 km) or six months, whichever occurs first. CAUTION! Do not use chemical flushes in your engine oil as the chemicals can damage your engine. Such damage is not covered by the New Vehicle Limited Warranty. Engine Oil Selection For best performance and maximum protection under all types of operating conditions, the manufacturer only Engine Oil Viscosity (SAE Grade) recommends engine oils that are API Certified and meet SAE 5W-20 engine oil is recommended for all operating the requirements of Chrysler Material Standard MS-6395. temperatures. This engine oil improves low temperature American Petroleum Institute (API) Engine Oil starting and vehicle fuel economy. The engine oil filler Identification Symbol cap also shows the recommended engine oil viscosity for This symbol means that the oil has your engine. For information on engine oil filler cap been certified by the American location, refer to "Engine Compartment" in "Maintaining Petroleum Institute (API). The Your Vehicle" for further information. manufacturer only recommends NOTE: Vehicles equipped with a 5.7L engine must use API Certified engine oils. SAE 5W-20 oil. Failure to do so may result in improper operation of the Multi-Displacement System (MDS). Refer to "Multi-Displacement System" in "Starting and Operating" for further information.