It is essential to keep your transmission filter clean and free of the debris that so quickly accumulates. A dirty filter will eventually cause the transmission to spoil before it should. Some of the symptoms caused by a dirty filter are erratic shifts and performance.
More on Transmission Filters from OC Diesel:
Most vehicles need to have their filters replaced every 30,000 miles or two years; this will keep the filters free from the contaminants which typically clog them up: metal chips, flakes, and clutch facings' tiny fibrous pieces. It will also keep the fluid of the transmission and the transmission itself cleaner, prolonging its operating life.