2006 Dodge Ram 1500 Pickup Owner's Manual - Page 453

MAINTAINING YOUR VEHICLE 453 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 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 Fluids, Lubricants and Genuine Parts for correct fluid type. Manual Transmission Fluid Level Check This fluid level can be checked by removing the fill plug. If the level of the lubricant is more than 1/4" (6.4 mm) below the bottom of the filler hole while the vehicle is on level ground, enough lubricant should be added to bring the level to the bottom of the filler hole. Lubricant Selection G238 (6-Speed Manual Transmission - If Equipped) This transmission is filled with manual transmission fluid at the factory. This fluid does not require periodic changing. If it is necessary to add or change fluid in this transmission refer to Fluids, Lubricants and Genuine Parts for correct fluid type. This is the only lubricant recommended for use in the Getrag 238 transmission. 7