4 Transmission Oil Change Mistakes To Avoid

March 10, 2023 | By Mister Transmission

4 Transmission Oil Change Mistakes to Avoid

When conducting a transmission oil change, it’s important to get it right, but everybody makes mistakes, so here are four common errors to avoid.

Mistake #1: Confusing Transmission Oil For Transmission Fluid

The first mistake concerns nomenclature. Transmission fluid typically refers to automatic transmission fluid, or ATF. Automatic transmissions use ATF. And, somewhat confusingly, some manual transmissions also use ATF.

However, other manual transmissions use a type of oil. This could be regular engine or motor oil, hypoid gear oil, or transmission oil. Assuming your vehicle still has its original transmission, your owner’s manual should dictate which type of oil is best for your manual transmission. If you’re not sure, bring your vehicle into Mister Transmission and we can inspect your transmission and let you know.

Mistake #2: Waiting Too Long Between Transmission Oil Changes

Whatever type of fluid or oil your transmission needs, it performs the same basic function, which is similar to the function of motor oil in gasoline-powered internal combustion engines. Transmission oil lubricates and cools the transmission. Without enough oil, it’s easy for the transmission to overheat. This can cause lasting—and expensive—damage.

Most vehicles in Canada use automatic transmissions, so if you’re new to manual transmissions, you’re not alone. One mistake drivers of manual transmission vehicles often make is assuming that the fluid change interval is the same; it isn’t. The recommended change interval for manual transmissions is typically a bit shorter for manual transmissions, about every 48,000–80,000 km. Again, your owner’s manual should have a more specific recommendation.

Mistake #3: Not Checking The Quality Of The Transmission Oil When You Do Change It.

Whether it’s transmission fluid or oil, many people tend to focus on quantity over quality. They assume it’s a matter of fluid levels and if the level is below the recommended line, they top it up. And that’s great, but what about the quality of the oil? If it smells burnt or looks discoloured, there could be something wrong with your transmission. If you think there’s something wrong with your transmission oil, bring your vehicle into Mister Transmission and we can check it out.

Mistake #4: Not Knowing What The Heck You’re Doing

At this point you might be thinking, “OK, but how do I check my transmission oil?”. That’s a fair question, but the answer depends on your model of transmission. Come to Mister Transmission for any of your transmission needs.

Come To Mister Transmission For A Transmission Oil Change Or Any Other Service You Need.

At Mister Transmission, we are transmission experts. Please get in touch with us today to schedule a transmission inspection, maintenance service, or repair.

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Went to Mister Transmission on...
Tony Brags
Went to Mister Transmission on Woodchester Dr. after my daughter's 2015 Honda Civic broke down on the road with no traction going forward or reverse. My decision was based on positive customers' reviews of the business on Google. Explained the problem to Giorgio who asked me to bring the vehicle in for inspection. After I had the vehicle towed there, Giorgio soon called me and confirmed that the problem was a broken axle. His repair quote for cost and time was reasonable and his manner was upfront and professional so I also asked for the transmission fluid drain and refill to be done while the vehicle was in the shop. I left the shop a satisfied customer and would recommend this business for the good customer service delivered there.
Date: February 1, 2026
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This Mister Transmission came highly...
Joshua Santos
This Mister Transmission came highly recommended by a few mechanics that I know and now I know why. After having my Fiance's Transmission replaced here last year, I recently needed to bring my Jeep in. Giorgio went above and beyond finding me a good replacement transmission at a very reasonable price (same as he did for my Fiance's car), but also went out of his way to get me a deal on a windshield replacement at another shop when he noticed mine was cracked. If you are having issues with your transmission and need someone who is trustworthy and reliable, look nowhere else. This place gets it done with minimal damage to your wallet.
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Got me in same day and real fast on time and attendant was super helpful
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Nathan D
Justin was forth coming looking at my car and gave his honest opinion. I would highly recomend this buisness.
Date: January 31, 2026
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Overall, best service I have...
Ryan Wright
Overall, best service I have been provided with in a long time. Jason helped me with my transmission issue. I had my vehicle at the dealership which told me $12,000 for a repair. I then had the vehicle towed to Mr. transmission. Jason and his crew did a free multi point inspection and found the exact issue and And they fixed it up for me and got it moving once again thank you to Jason and your team at Mr. transmission for providing a well trustworthy service. Much appreciated. Definitely will be recommending to anybody who wants proper transmission service.
Date: January 30, 2026
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Had an issue or two...
Cary Badder
Had an issue or two over the last couple of years. I found Aki and his team to be the most reliable of all mechanics north of the 401 on DIXIE Rd. I highly recommend them for truthful answers and solutions for anything pertaining to my vehicle.
Date: January 30, 2026
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This place has been my...
Matt French
This place has been my saving grace for a couple of years now. Driving a truck, especially the way I do. They make sure my transmission and drive train say in good shape. They have saved me from having a multi thousand dollar rebuild bill, and on top of that, Jason and his team actually give a shit. Which is rare in the auto industry. We all know places that just want the money we work hard for without giving the proper service and care that is needed. Thank you for doing what you do.
Date: January 30, 2026
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Kris and Dawn are always...
Cole Hollinger
Kris and Dawn are always so helpful and trustworthy when it comes to car issues. Throughout the years they have always came in clutch for me (pun intended).
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5 star . they know...
The S.
5 star . they know what they are doing. saved me thousands. everyone else told me i needed a transmission when it was just a misfire . thank god i found them
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I had a great experience...
Marty Heide
I had a great experience dealing with Blair and Darren. I appreciated Blair telling me that taking my Juke to a dealership would cost me more than if Mr. Transmission were to fix my car. I will continue to deal with them , as I appreciate the honesty. Five ⭐️’s!
Date: January 29, 2026
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