To Change Or Not To Change, The Transmission Filter

In time all things change, and the Fast Lube Industry is no stranger to change. One of the major changes in the industry is the way that we perform Automatic Transmission Fluid services. Once upon a time when providing an ATF service we routinely removed transmission pans, provided visual inspections and replaced transmission filters prior to installing new ATF. While there were many benefits to providing automatic transmission services in this manner, it also had some negative connotations such as, limited fluid removal, increased service time and Lube Technician training, not to mention elevated transmission filter inventories. When transmission fluid evacuation “FLUSH” machines were introduced they revolutionized the way we looked at and performed Automatic Transmission services in the Fast Lube industry, almost overnight. Most of these machines were easy to operate, decreased service time, provided a greater perceived value to the consumer and evacuated the majority of the ATF from the transmission. What could be better? Try changing the transmission filter in conjunction with utilizing your transmission flush equipment to insure proper ATF FLOW, maximizing transmission performance. The key to this Tech Tip is Filtration! Filters collect and remove unwanted contaminates & particles from the ATF and should be replaced or cleaned at manufacturers recommended service intervals. Often when an automatic transmission service is performed without changing the transmission FILTER, contaminates can become dislodged within the transmission and can collect in various areas such as the valve body or the transmission cooler effecting line pressure. These contaminates can restrict the FLOW of the FLUID thus effecting the vehicles shift quality and overall performance. Proper filtration and correct line pressure is just as important to transmission performance and shift quality as is the correct frictional profile of ATF for specific applications.