When to Change your Transmission Fluid

September 23, 2019 | By Mister Transmission

When to Change your Transmission Fluid

“When do I need to change my transmission fluid?” It’s one of the most common questions that we get asked here at Mister Transmission. It’s a good question to ask. Your transmission fluid is vitally important to the wellbeing and efficacy of your transmission. But the answer to that question is nuanced; there’s not one simple answer. However, this article will attempt, in the broadest terms possible, to describe the times and situations when you should change your transmission fluid.

Checking Your Transmission Fluid

Your transmission fluid is important for two reasons. First, your transmission won’t work without it, so that makes it pretty important. Depleted or degraded transmission fluid can damage your transmission and reduce its efficiency. But beyond that, your transmission fluid is key to demonstrating if you have a transmission problem. For example, if you have degraded transmission fluid then there is probably something wrong within your transmission to have caused this.

That is why checking your transmission fluid is key to maintaining your transmission. You should check your transmission fluid every month. Use your dipstick to check your transmission fluid levels. If it is low, top it up. If you find that you’re topping up your fluid every single month, you probably have a leak somewhere. Good transmission fluid is reddish-clear and has a neutral odour. Foul smelling and/or opaque fluid is a sign of a problem. If you see such fluid during your transmission check, you should bring your vehicle in to have your transmission fluid changed and to have your transmission checked for problems.

Multi-Check

Sometimes there are issues with your transmission that you can’t tell by yourself. This is why bringing your vehicle in for regular transmission service is important. At Mister Transmission we provide a Multi-Check Inspection, an exhaustive inspection of your transmission. The last step of the Multi-Check Inspection will determine the condition of your transmission.

Regular Transmission Fluid Changes

Some transmission manufacturers boast that the fluid in their transmissions need never be changed because it is a completely closed system. These claims don’t stand if there is something wrong with your transmission, though. Even so, sometimes transmission technicians will recommend changing the fluid in such transmissions anyway, just to be safe. Most auto manufacturers recommend changing your transmission fluid every 45,000 to 90,000 kilometres. That’s a big range. At Mister Transmission, we recommend erring on the smaller side of that range. If you regularly drive in harsh conditions or drive a truck that tows material, you will probably want to change your transmission fluid even more frequently than that,

Ultimately, every vehicle, transmission, and drivers are different. There is no universal rule that pertains to all vehicles, so ask your transmission technicians what they think. If you notice that your transmission fluid is damaged, have it changed and have your transmission inspected. If you’ve gone 45,000 kilometres without incident, you might as well have it changed just to be safe.

Mister Transmission

If you have more questions about transmission fluid, please contact us.

Mister Transmission Team

The Mister Transmission team consists of certified transmission specialists with decades of combined experience in diagnosing, repairing, and maintaining automatic and manual transmissions.

With over 60 years of service across Canada, our experts provide trusted, accurate, and up-to-date automotive advice to help drivers make informed decisions about their vehicles.

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Liz Fullenwider
Removed my first review and am updating… my vehicle had sustained a bit of damage but they have agreed to repair it! I am happy with that outcome come. Over all…the service has been good. Jason is exceptional to deal with.
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Car was towed in, driven out! Fantastic work orchestrated by Mohamed in the office and the team replacing transmission. Low mileage, 13 year-old car lost reverse...detailed estimate provided, search for used replacement was time consuming but ultimately came in as per quote. Text updates, honest status reports made life easy. Thanks to all.
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I had a great experience at Mister Transmission. I went in worried that my vehicle had a major transmission problem, but after inspecting it, they honestly told me they didn't believe the issue was related to the transmission. They didn't try to sell me unnecessary repairs, didn't charge me anything, and pointed me in the right direction instead. A special thank you to Sunny for being professional, patient, and genuinely honest. It's not every day you find a shop that values integrity over making a quick buck. That level of honesty has earned my trust, and I'll definitely be coming back if I ever need transmission work or any other car related work in the future. Highly recommended!
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⭐⭐⭐⭐⭐ I had an excellent experience at Mister Transmission thanks to Lorenzo and Dan. While they didn't actually perform any repairs on my vehicle, they took the time to thoroughly explain everything, answer all of my questions, and provide honest, knowledgeable advice without any pressure. It's refreshing to find people who genuinely care about helping customers understand their situation rather than just trying to sell a service. Their professionalism, patience, and expertise gave me complete confidence. I wouldn't hesitate to recommend Lorenzo and Dan to anyone looking for trustworthy and knowledgeable transmission specialists.
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Rosanna H.
Had a great experience at mister transmission very friendly and knowledgeable staff. Was able to get my car fixed at a minimal cost with excellent service!
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Al Hearn
mr Transmission in Owen sound was great every step of the way. They worked very hard to get me back on the road and the car is working well now. Thank you.
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Walt Tessling
Finally got relief of my transmission problem..Took my 2011 buick Lucerne in for a diagnosis for shifting problems after yrs of odd shifting problems and replacing speed sensors and dealer ignorance.. After speaking with an understanding lady Julie, she got me in for examination of what it was doing.. Well they told me the Good news that it wasn't the transmission and that they recommended a troubleshooter at ( Matt) at MVM Labs Automotive Services which eventually found a broken wire to the speed sensor.. Its great to know that Windsor still has honest and knowledgeable people to take care of these automotive repairs.. Thanks again Julie and with the company you represent. Oh and I forgot, they didn't even charge me for diagnosis.Everyone that has transmission issues would be wise to consider this company
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Had a costly transmission repair bill on my daughters 2018 Ford Focus and had some problems a short time later but they not only got us in and remedied the issue but went way beyond our expectations. Thank you so much Neil and team.
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Meleah Silverthorn
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