Lou Fusz Kia Transfer Case Service in St. Louis

Purpose of Transfer Case

The transfer case is filled with fluid, and that fluid helps to keep parts of the transfer case lubricated, cool, and prevent wear and tear, which also includes corrosion prevention. When the transfer case is in motion, the gears and chain inside splash the fluid everywhere to keep the transfer case enclosed in the fluid. While the fluid keeps the components cool and lubricated, the fluid itself deals with heat and friction, which eventually cause the fluid to lose its lubricating capabilities and break down. Around this time the fluid will become gritty and dark, and it will need to be changed.

When Transfer Case Fluid Needs to Be Replaced

One visual sign that a new transfer case fluid is needed is when the fluid turns into a dark and gritty color. Another sign is seeing that the transfer case fluid is low. One audible sign is that there could be some grinding or rattling underneath your vehicle. A milestone to start thinking about getting new transfer case fluid would be around the 30,000-mile mark. At that point, it would be best to get a new transfer case fluid. You might need to get new fluid sooner if you do a significant amount of towing or off-road driving.