2008 Dodge Ram 2500 Pickup Owner Manual - Page 481

MAINTAINING YOUR VEHICLE 479 7. Check for leaks. Release parking brake. To prevent dirt and water from entering the transmission after checking or replenishing fluid, make certain that the dipstick cap is properly reseated. It is normal for the dipstick cap to spring back slightly from its fully seated position, as long as its seal remains engaged in the dipstick tube. Automatic Transmission Fluid and Filter Change Follow the Maintenance Schedule for recommended transmission fluid and filter change intervals. NOTE: If the transmission is disassembled for any reason, the fluid and filter(s) should be changed. It is important that proper lubricant is used in the transmission. For the correct Fluid type, refer to "Fluids, Lubricants and Genuine Parts" in this Section. Special Additives Automatic Transmission Fluid (ATF) is an engineered product and its performance may be impaired by supplemental additives. Therefore, do not add any fluid additives to the transmission. The only exception to this policy is the use of special dyes to aid in detecting fluid leaks. In addition, avoid using transmission sealers as they may adversely affect seals. Front and Rear Wheel Bearings Front Wheel Bearings Front wheel bearings for all vehicles are sealed-for-life. They do not require greasing or seal replacement. In some instances, these bearings will "purge" excess grease and the bearing will look slightly wet. This is normal. Periodic inspection for excess play is recommended. 7