Why Is It Necessary To Change Your Transmission Fluid?

March 10, 2021 | By Mister Transmission

Why Is It Necessary To Change Your Transmission Fluid?

Do you really have to change your transmission fluid or is it just one of those things that you’re supposed to do. We hate to tell you, but, yes, you do have to change your transmission fluid at some point to ensure a properly functioning transmission.

What Is Transmission Fluid?

Your transmission fluid is the lifeblood of your transmission. Most Canadians drive automatic transmission vehicles, which require automatic transmission fluid to lubricate the components within the transmission and it also acts as a coolant. Continuously variable transmissions (CVTs) also use transmission fluid. Manual transmissions vary. Some use transmission fluid, some use something called transmission oil, and some use standard motor oil. Automatic transmission fluid is optimized for automatic transmissions, but all these fluids provide lubrication.

What Problems Might You See With Your Transmission Fluid?

Checking your transmission fluid every month gives you the best chance of catching small problems before they grow big. But what are you checking for? First, check your fluid levels. If your fluid isn’t at the line, top it up. If you have to top it up every month, you probably have a leak, and your transmission needs to be resealed. But also check the quality for your transmission fluid. It should be mostly clear with a reddish hue (or in some rare cases, greenish). If your fluid is opaque or if it smells bad, then this is indicative of a larger problem. Apart from whatever other repair is necessary, your transmission fluid will need to be changed.

Do You Only Need To Change Your Transmission Fluid When There Are Problems?

If your transmission overheats, it can burn your transmission fluid. Burnt transmission fluid needs to be changed. To check your transmission, a tech might perform a pan examination, in which they will check your fluid for particulate matter. Some material in your fluid is normal, but there shouldn’t be a lot of it. Friction surfaces often wear down and, if left alone for too long, they’ll contaminate your fluid to levels that are too high. Then your fluid will have to be changed.

All these issues that require transmission fluid changes start somewhere else. But do you need to change your transmission fluid just as a precaution? Some manufacturers offer “fill-for-life” fluids and some transmissions are designed to be complete systems in which nothing goes in or out. But claiming something doesn’t make it true. No matter what kind of automatic transmission you drive, what kind of fluid you use, or where you drive, the Automatic Transmission Rebuilders Association recommends a transmission fluid change every 50,000 kms, or every two years.

Mister Transmission

To learn more about transmission fluid changes, please contact us.

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Customer Reviews
I went to Mister Transmission...
Shanece Nestor
I went to Mister Transmission Whitby because my vehicle was showing signs that the transmission might be going. I honestly thought I was losing my transmission, but it turned out to just be a leak.From the beginning, the service was amazing. Denise who I spoke with over the phone was incredibly professional and so nice. She kept me updated throughout the process and made everything feel a lot less stressful.This was my first time going there, and my experience was honestly great. I was greeted kindly, and everyone was helpful and respectful.I would 100% recommend this place if you’re having transmission issues.Overall, it’s a solid place to take your vehicle. I’m really glad I chose them! P.S the recommendation came from Jiffy Lube.
Date: April 25, 2025
Website: Google
Excellent work by Michael and...
Mohammed Basil
Excellent work by Michael and Noah. Michael fixed the clutch line and also did an inspection of the suspension, axles, and drive shaft. Helpful information for maintenance.
Date: April 24, 2025
Website: Google
Recently had an issue with...
Anka Artiste
Recently had an issue with my Dodge Ram 1500. A rare message appeared and no one seemed to know what it was. My mechanic (in Bancroft) referred me to Mr. Transmission in Peterborough. The service there was GREAT!!! Cam explained to me exactly what was needed. Cam and Joe were so helpful and answered all my questions. Will definitely go back should I need any transmission repairs in the future. I am very grateful for their wonderful service. Highly recommend!!!
Date: April 24, 2025
Website: Google
A few weeks ago, I...
Harvey Wang
A few weeks ago, I had a great transmission fluid experience at this branch of Mister Transmission. I purchased a used Hyundai Tucson but unfortunately this car’s maintenance history is not complete. I decided not to take a risk of damaging its transmission and change its transmission fluid. This Mister Transmission location did a complete transmission fluid change and my car’s transmission perform much better after the change!!
Date: April 23, 2025
Website: Google
Been using this shop for...
Corey Kisch
Been using this shop for a long time to do our shops transmission rebuilds and differential rebuilds, amazing workmanship and fair pricing!
Date: April 23, 2025
Website: Google
This garage provides excellent, reliable...
Manav Grover
This garage provides excellent, reliable service with friendly and helpful staff. Jason & Jordan are always in communication about the work being done and ensure quality results, making them a top choice for car repairs and maintenance. They go the extra mile for their customers, making them feel comfortable and valued
Date: April 22, 2025
Website: Google
Gus was very professional and...
Mike Long
Gus was very professional and took the time to patiently review a number of documents that were provided by the dealership so that I fully understood all the codes being displayed with respect to recalls from Dodge. He was very approachable and forthcoming in answering all my questions.
Date: April 21, 2025
Website: Google
Thanks to Raman....i got my...
Oscar Castaneda
Thanks to Raman....i got my transmission on my civic rebuild.....he did an awsome job...was honest about it needed.....would recommend to anyone....thanks guys
Date: April 21, 2025
Website: Google
Jamie and the team at...
Ryan Boles
Jamie and the team at Mister transmission are awesome. They were super accommodating of me with a significant issue I had with my vehicle. I believe they went above and beyond the call of duty to help a customer. Highly recommend, I will be back.
Date: April 21, 2025
Website: Google
While on vacation our transmission...
David Janiszewski
While on vacation our transmission failed as soon as we arrived from Ohio. Ken and team sourced a transmission, stayed after hours and Ken himself came in on a holiday morning so we could drive our car home rather than me having to drive back 6 hours one way the following week.Communication throughout the process was excellent and the customer service was second to none. Highly recommend this shop. Excellent experience over all.
Date: April 20, 2025
Website: Google
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