2008 Dodge Ram 2500 Pickup Owner Manual - Page 455

MAINTAINING YOUR VEHICLE 453 NOTE: Vehicles equipped with a 5.7L engine must use SAE 5W-20 oil. Failure to do so may result in improper operation of the Multi-Displacement System (MDS). Refer to "Multi-Displacement System" under "Starting and Operating" in Section 5. NOTE: For 2500/3500 trucks with a 5.7L engine operating under a gross combined weight rating of 14,000 lbs. or greater, SAE 5W-30 engine oil is recommended for all operating temperatures. Lubricants, which do not have both the engine oil certification mark and the correct SAE viscosity grade number, should not be used. Synthetic Engine Oils You may use synthetic engine oils if the recommended oil quality requirements are met, and the recommended maintenance intervals for oil and filter changes are followed. Materials Added to Engine Oil The manufacturer strongly recommends against the addition of any additives (other than leak detection dyes) to the engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives. Disposing of Used Engine Oil and Oil Filters Care should be taken in disposing of used engine oil and oil filters from your vehicle. Used oil and oil filters, indiscriminately discarded, can present a problem to the environment. Contact your authorized dealer, service station, or governmental agency for advice on how and where used oil and oil filters can be safely discarded in your area. 7