What It Takes to Perform a Transmission Oil Change

When and How to Change Your Transmission’s Oil

The steps that are involved with a transmission oil change does vary depending on the vehicle in question, however, the biggest difference is if the vehicle is a manual or an automatic transmission. Changing the former is pretty straight forward. However, when it comes to an automatic, it involves draining the pan, replacing filters, and then flushing the entire system out.

The flushing component can be achieved using a fluid exchanger or via more primitive means. It is sometimes possible for vehicle owners to change their own transmission fluid, although the process is more complex than other DIY jobs, like changing motor oil. Manual transmission fluid is not subjected to the same heat as automatic transmission fluid is, however, it still has to be changed at regular intervals. The most difficult part in this process is raising the car up and finding the transmissions drain plug.

Drain plugs are often quite hard to locate, and when a vehicle has a differential case it is crucial these are not drained. Sometimes the fluid is drained and filled from the same place, in which case a suction device is needed in order to remove the old fluid, in addition to a bottle with a long neck to refill the reservoir.

Changing automatic transmission fluid is a much more complex operation. Should a fluid exchanger be available, the first step is to remove much of the ATF as possible. In the absence of this device, the fluid can be drained from the pan, either through the plug or in the removal of the pan. Once removed, the filter should be replaced. Most vehicles will have filters located in the pan, however, there are a few that come with external filters.

So as you can see, a transmission oil change is not as easy as it seems. Which is why you should Midnight Diesel today. We are based in Kerrville, TX area at (830) 217-3039.

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