How and When Should I Change My Transmission Fluid?

By Mister Transmission

How and When Should I Change My Transmission Fluid

Transmission fluid is the lifeblood of your transmission. Transmission fluid acts as a lubricant to help keep everything running smoothly and efficiently. That is, of course, assuming that you have good levels of clean transmission fluid in your transmission. To ensure this at all times, you should regularly change your transmission fluid. But how and when is sometimes a matter of debate.

Transmission fluid

There are many transmission problems that can be caused or exacerbated by an inadequate quantity or quality of transmission fluid. If you are driving around with either very old or not enough transmission fluid (or worse still, both), you are accelerating the wear and damage on components within your transmission. Taking the time to change it out when necessary could save you loads of time and money in the end by extending the lifespan of your transmission.

When to change your transmission fluid

Just when you should change out your transmission fluid will vary depending on what kind of transmission you have, what vehicle you drive, where you drive, how you drive, and how much your drive. But for a very rough estimate, for an automatic transmission, you ought to change your fluid every 50,000-100,000 kms. 100,000 kms is in the far reaches of the acceptable range, mind you. The Automatic Transmission Rebuilders Association suggests every 50,000 kms or every two years.

For manual transmissions, you should change the fluid about every 50,000-90,000 kms, however, under intense use, some manufacturers suggest changing it as often as every 25,000 kms. The reason for the difference between automatic and manual transmissions is because they take different fluids. Automatic transmissions take –get this– automatic transmission fluid. For manuals, it is a bit more complicated. They might take any of a variety of oils: regular motor oil, heavyweight hypoid gear oil, or even automatic transmission fluid in some cases. Your owner’s manual will tell you which is best for your transmission.

How to change your transmission fluid

To change out your transmission fluid, first let your car idle for a few minutes. After turning your ignition off, raise and secure the vehicle. Lay down at least a two-gallon catch pan, then carefully remove the bolts from one side of the transmission pan and then the other bolts, allowing the pan to tilt and drain. Once you’ve removed all the bolts, lower the pan and dump the remaining fluid into the catch pan.

After that, remove the old transmission filter and O-ring. The filter contains fluid, so keep the drain pan underneath. Install the new transmission filter, and make sure that the O-ring is in the appropriate place. Attach the new gasket to the pan with oil-soluble grease – not gasket sealer or adhesive.

Screw in all the fasteners finger-tight. Torque the pan bolts to spec in a spiral pattern starting at the center. Maximum torque is often about 12 pounds per foot. Then, lower your automobile and fill the transmission with the recommended amount of fluid. Finally, turn your engine on to check for leaks.

Contact us

As you can see, changing your transmission fluid is quite involved. If it seems like much of a hassle for you, please contact us at Mister Transmission and we’d be happy to do it for you. We can also “flush” your transmission fluid out, taking out more metal shavings and debris.

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I recently went in to...
Kyle Andree
I recently went in to see dez for a transmission in a 90's silverado. After he rebuilt the transmission he called me toTell me i needed a new shifter cable.i told him I didn't care about the new cable but he threw the cable in for free. Definitely good service and the price was very good too
Date: May 15, 2022
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Blue
I went in to set up an appointment for them to see what exactly was wrong with my car, because they were busy and couldn’t see to my car they wanted to know what they were dealing with.When they saw my car Bob the chap I was dealing with advised me against driving it any further until repairs were done.I could have had a terrible accident and my car could have been totalled.If I need anything done to my car and they can do it , I’m going to them.
Date: May 14, 2022
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I went in to set...
Blue
I went in to set up an appointment for them to see what exactly was wrong with my car, because they were busy and couldn’t see to my car they wanted to know what they were dealing with.When they saw my car Bob the chap I was dealing with advised me against driving it any further until repairs were done.I could have had a terrible accident and my car could have been totalled.If I need anything done to my car and they can do it , I’m going to them.
Date: May 14, 2022
Website: Google
I went in to set...
Blue
I went in to set up an appointment for them to see what exactly was wrong with my car, because they were busy and couldn’t see to my car they wanted to know what they were dealing with.When they saw my car Bob the chap I was dealing with advised me against driving it any further until repairs were done.I could have had a terrible accident and my car could have been totalled.If I need anything done to my car and they can do it , I’m going to them.
Date: May 14, 2022
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The staff and franchise owner...
Marty Roberts
The staff and franchise owner are trustworthy and professional. Service is excellent, being in the automotive business I have used Mister Transmission in Peterborough more than once with positive results.
Date: May 13, 2022
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Pat Pickles
Always A1 service
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Peter Prudencio
I've had a great experience with this local auto shop: Giorgio is a fantastic business owner, with an honest and reliable work ethic, favouring and fostering long-term relationships with his customers, and offering very fair prices compared to larger dealerships and other shops. Comes strongly recommended by my neighbours, and I would vouch for his excellent quality of service as another witness to his workmanship.
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Gus is very professional, honest...
Karen Dyer
Gus is very professional, honest and his customer service is amazing. He explained everything to me so I knew exactly what he had done. I would recommend him to anyone
Date: May 12, 2022
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The gentleman at Mister Transmission...
Marcus W.
The gentleman at Mister Transmission was incredibly helpful and professional. He looked at my car and diagnosed that the problem wasn't the transmission itself, but likely the transmission computer.  He then helped me contact the dealer to confirm that the model had been having problems.  Rather than charging me for the repairs, he worked with me to get me the best deal.  He put the customer ahead of the bottom line, and I couldn't be more grateful for his work ethic.
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M Rashid
These guys are very helpful, I did not have any work done here but he still helped me on phone and answer my questions about transmission in the car I was going to buy.
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