2005 Dodge Ram 2500 Pickup Owner Manual - Page 375

MAINTAINING YOUR VEHICLE 375 Drain and Refill Vehicles operated in normal service do not have regularly scheduled oil changes. If fluid has become contaminated with water or to provide the correct viscosity grade, drain and refill. Lubricant Selection Refer to Recommended Fluids, Lubricants and Genuine Parts for correct fluid type. NOTE: The presence of water in the gear lubricant will result in corrosion and possible failure of differential components. Operation of the vehicle in water, as may be encountered in some off-highway types of service, will require draining and refilling the axle to avoid damage. Limited-Slip Differentials in 1500 Model vehicles require that 4 oz. (118 ml) Mopar௡ limited slip additive be added to the gear lubricant. Refer to Recommended Fluids, Lubricants and Genuine Parts for correct fluid type. The Mopar௡ limited slip additive should be added to the gear lubricant whenever a fluid change is made. Ram 2500/3500 Model Axles DO NOT REQUIRE any limited slip oil additive (friction modifiers). Transfer Case Fluid Level Check This fluid level can be checked by removing the filler plug. The fluid level should be to the bottom edge of the filler plug hole with the vehicle in a level position. Lubricant Selection Refer to Recommended Fluids, Lubricants and Genuine Parts for correct fluid type. 7