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.

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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These guys were a huge help with the rebuild of my transmission. They were honest with the quote and only took 3 days to get the job done! Awesome work guys! Highly recommend to all!
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We brought our 2005 Jetta in to have the transmission rebuilt. It only took them a week! It was then still having a bit of trouble shifting if we didn’t let it warm up for awhile. We took it back in and they were able to find the issue and fix it under warranty. Great experience!
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A BIG thank you to SANJAY excellent customer service,couldn't have ask for any better service , will recommend Sanjay at MR TRANSMISSION to all,Much Appreciated,with your honesty,and how long the vehicle would be in shop, Sanjay was right with timing ,, so Mr Transmission, Sanjay is your guy! Thank you JP
Date: May 28, 2026
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Ethan Fleger
Awesome shop. Explained everything to me perfectly, although i’m an idiot when it comes to understanding how most of the transmission stuff works. 100% recommend getting your car checked out here
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Trisha Girard
Communication was easy, my car was fixed quickly and the pricing was very reasonable.
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John Bulger
Frank has a friendly professional personality Tom (repair man) explained what he found and suggested other items for future repairs This place is fantastic and I would recommend to everyone
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The Pembina location tested my...
Garry Smith
The Pembina location tested my transmission and then serviced my transmission, transfer case and differential today. Very professional, thorough and quick. I was pleasantly surprised at the price as compared to having the same work done at a dealership.
Date: May 27, 2026
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I had a great experience...
Omagara Nonso
I had a great experience here with my GLA, warmth reception and great service. I totally recommend
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The staff are friendly ,...
Edwin Tabios
The staff are friendly , gave me a qoute that is very close to what I actually paid. Very accurate to what is my car’s problem and fixed it and they communicated well to what is need to be done. This place is highly recommended for all your transmission problem. Don’t think twice, the staff are very knowledgeable.
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