What is a Transmission Flush?
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.
Flush vs. Change
A flush uses a professional grade machine to completely flush all the transmission fluid from your vehicle and remove some grime and contaminants from the torque converter and cooler lines to prevent them from causing transmission problems. This process involves running a special solution through the lines until they come out completely clean and then fills up the system with new fluid.
A fluid 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 service centers 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. Consult a reputable service provider if you need advice.