Transmission Assembly
Haller Complete Automotive Repair
Transmission Fluid Colors

Transmission Fluid Colors

Transmission Service



The importance of a transmission flush often goes unnoticed until serious problems arise. It is a process that is important to the health and maintenance of your car, and if done properly, is an excellent preventative maintenance procedure. Check your owner’s manual for the proper maintenance schedule. However, if you feel there are certain problems with your vehicle such as odd noises or gear shifting issues, it might do more harm than good. 



A transmission flush is a maintenance process where all of the oil in a transmission is removed, new oil (and sometimes cleaning solutions) is run through it using a special machine to push out grime and sludge and then it is filled up with new oil. The process is used to remove debris and sludge and replace 100% of the used oil with fresh, clean quarts. 




Flush vs. Change


flush uses a professional grade machine to completely flush all the transmission fluid from your vehicle and to remove some grime and contaminants. This process runs a special solution through the lines until they come out completely clean and then fills up the system with new fluid.


change on the other hand simply drains it using natural gravitational forces. Not all the fluid in the system is drained using this method and it does not flush out contaminants. Most say it only drains between 20%-40% of the total volume.


The goal of both changes and flushes is to improve and extend the life and performance of your car.




How often should it be done?


This maintenance procedure should be performed every 30,000 miles or so. Some vehicle manufacturers will advise doing it every two years or 24,000 miles. You can often review your owner’s manual or speak to your dealership, however it is important to understand your driving habits and relay that information to a professional. Vehicles that are often towing or drive through sand, dirt and other harsh terrain, may require earlier service.






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