Your transmission is said to be the heart of your engine, and proper lubrication that's free from harmful contaminants is vital to keeping that heart healthy. WIX transmission filters protect automatic transmissions against contaminants in the fluid so they can keep your engine pumping at peak performance. Proper filtration helps to improve your transmission's life by minimizing wear and preventing the sticking and scoring of sensitive shift control valves. Plus, in the event of part failure, the filters also guard against secondary damage to other parts and help to keep repair costs to a minimum. It sounds like WIX transmission filters are just what the doctor ordered to keep your tranny living a long and happy life.