Everything You Need to Know About Transmission Fluid Changes (But Were Afraid to Ask)

November 4, 2019 | By Mister Transmission

Everything You Need to Know About Transmission Fluid Changes (But Were Afraid to Ask)

Transmission fluid: it’s important. If you drive a vehicle with an automatic transmission, your vehicle won’t work without automatic transmission fluid. Manual transmission vehicles can also use transmission fluid as well but can also use something called transmission oil. Regardless, the principle is much the same. You need transmission fluid to operate your vehicle. But your transmission fluid will need changing occasionally. How do you know when that is? This article will go over everything you need to know about transmission fluid changes (but were afraid to ask).

Transmission Fluid

Without transmission fluid, you’ll have nothing to lubricate the various components within your transmission. The transmission is not one solid unit but rather a piece of machinery that is comprised of many constituent parts. All those parts need to be working together just so in order for the transmission to operate properly. What’s more, things can get hot under that hood, so transmission fluid is key because it can help cool everything down. There is no transmission problem in the world that cannot be caused or at least exacerbated by a lack of transmission fluid. But it’s not just quantity. Degraded transmission fluid can also cause serious problems for your transmission.

How Often Do I Need To Check My Transmission Fluid?

You should check your transmission fluid every month. Using the dipstick under your vehicle’s hood, check your transmission fluid levels and if they’re not where they should be, top them up. If you find yourself topping up your fluid levels every month, you’ve got a problem. You either have a leak or your transmission is somehow evaporating your fluid at a quick pace. Check under your vehicle after you’ve been parked for a while to see if any transmission fluid is leaking. If you have a leak or can’t pinpoint the problem, bring your vehicle into a mister transmission shop where it can be inspected by technicians.

What Should Transmission Fluid Look Like?

Transmission fluid in good working order should be largely translucent with a reddish hue. If it is opaque, then the fluid has been damaged or degraded. If the fluid is foul smelling or smells of burning, this is indicative of a transmission problem.

How Often Do I Need To Change My Transmission Fluid?

This is perhaps the most common question when it comes to transmission fluid. How often are transmission fluid changes required? Well, if you notice your transmission fluid is damaged, you have to change it. But this will probably be after an inspection and any repairs have been conducted, so it’s likely this will be handled by a transmission technician. Barring any transmission problems, you should check your manufacturer’s guide to see how often they recommend changing your transmission fluid, because it can be different for every vehicle. Broadly speaking, you should change your transmission fluid every 45,000-80,000 kilometers. Perhaps more frequently if you use your vehicle for towing.

Which Transmission Fluid Should I Use?

Again, check your owner’s manual to see what the manufacturer recommends. Often with automatic transmissions, a synthetic transmission fluid is best.

Mister Transmission

To learn more about transmission fluid changes, 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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Customer Reviews
Mister Transmission was excellent in...
Catherine Myslicki
Mister Transmission was excellent in diagnosing and addressing the issue in record time. Thank you for your efficiency and service.
Date: July 10, 2026
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I had my transmission rebuilt...
Luis Zon
I had my transmission rebuilt at Mister Transmission and had a great experience from start to finish. The staff at the front desk were friendly, professional, and kept me updated throughout the process. The turnaround time was faster than I expected, and the pricing was fair for the work that was done. My vehicle is running great now, and I'm really happy with the quality of the repair. I would definitely recommend Mister Transmission to anyone needing transmission work.
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I brought my vehicle to...
Josh
I brought my vehicle to Mister Transmission for a transmission rebuild, and I'm glad I did. The team was easy to deal with, and the front desk staff made the whole process straightforward. They explained everything clearly, finished the job in a reasonable amount of time, and the price was better than I expected. My vehicle shifts smoothly now, and I have confidence in the work they did. I wouldn't hesitate to bring my vehicle back or recommend them to others.
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I was looking for a...
LucianoDelarosa123
I was looking for a shop I could trust to rebuild my transmission, and Mister Transmission delivered. Everyone was welcoming and professional from the moment I walked in. They kept me informed while my vehicle was being worked on, finished it on time, and the cost was reasonable. After driving it for a while, everything feels smooth and the vehicle is running the way it should. Overall, it was a positive experience, and I'd recommend them if you need transmission repairs.
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Great service and very a...
Jan Waite
Great service and very a great price thank you
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I had a noisy whining...
Steve Gard
I had a noisy whining noise coming from the drivetrain of my truck and needed to find a shop to inspect it promptly. I quickly found out that there were not many places I could go to in my area. One place suggested Mr Transmission would be a good place to get it looked at. I drove in spoke with the manager, Chris Guziak who had his employees take it for a test drive and then into the shop for inspection afterwards.It was discovered that it was a front differential spline bearing. I had recently purchased the truck which had an active warranty still on it. Chris promptly made out a repair estimate and with some patient negotiations with the warranty company finalized the coverage of the repair costs. Then settled on a date to get the parts & have the truck repaired. After leaving the the truck first thing in the morning, Chris sent me a message at 1:45pm to tell me the repairs had been completed! I was very pleased overall with their expedient, professional service. 🙂
Date: July 10, 2026
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I had a great experience...
Andrew
I had a great experience at Mister Transmission. They fixed my car quickly and did an excellent job. The manager was professional, helpful, and provided great customer service throughout the process. I would definitely recommend them to anyone looking for reliable transmission service.
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Very informative and helpful. Sanjay...
Samantha Rondinelli
Very informative and helpful. Sanjay is the nicest and very helpful!
Date: July 9, 2026
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Justin at Mr. Transmission on...
Marijane Doyle
Justin at Mr. Transmission on Upper James Street is honest, professional, and truly stands behind his work. When my engine light came back on just 10 days after the repair—even though I had driven the car only twice—he asked me to bring it in right away. He quickly determined that the brand-new replacement part was defective, replaced it, and charged me nothing for the additional diagnosis or repair. That kind of honesty and commitment to customer service is rare today. I highly recommend Justin and his team.
Date: July 9, 2026
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Went in with what I...
Ben Millard
Went in with what I thought was a transmission problem, ended up being something else. They helped me diagnose it, referred me to someone good, and didn’t charge me a thing. Has been a great experience.
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