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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Kael MacNeil
Professional and thorough service. Provided me with a full transmission rebuild after a critical failure with any and all issues covered under a 20,000km warranty. Gave me an excellent deal on cost and went the extra mile finishing up some small projects I was working on under the car at no added cost.
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EJG
Great customer service at fair cost. They finished the work quickly at the price I was quoted. 10/10
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Excellent service from beginning to...
Jacob
Excellent service from beginning to end! I recently had my wife's car serviced and repaired at the Mister Transmission on Barton Street East, and I am very pleased with the experience. Dan was highly professional, and he and his team went above and beyond to ensure we were completely happy and satisfied. They even topped up our windshield washer fluid and washed our car! I highly recommend this Mister Transmission location for any vehicle services and repairs
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I called and they were...
Jeffrey Maksymyk
I called and they were able to get my vehicle in quick to look at it. It took some time to start the work, but not abnormal. Took about a week to get it back. Able to do a rebuild on my transmission and ended up being cheaper (Toyota wanted almost $11, 000 to fix. Mister transmission ended up being $7300). Sanjay is friendly and took time to explain things. Found the follow-up communication was frustrating at times in that I would have to call to get updates, but probably because they are busy.
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My first mistake was to...
ED Glez
My first mistake was to bring my Truck to the dealer for a Transmission oil change, they really screwed up, should have taken to the Experts the first time , Mister Transmission listen to the issue and gave me my options, and lucky me they got it right away. Super professional, they won a new Customer and I will advise them to all my friends and family. Thanks to Ray and Gus.
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C N
I honestly cannot recommend Carlo at Mr. Transmission Orangeville enough — 1000% recommend! We came to Carlo after an absolutely terrible experience with another repair shop, where we had already spent thousands of dollars and our truck had been sitting for almost two months. We were frustrated, stressed, and honestly didn’t know where to turn next. From the moment we spoke with Carlo, he listened to everything we had been through and immediately stepped in to help. What had taken the previous shop nearly two months without a proper resolution, Carlo had our truck repaired and back to us in just 3 days. What really stood out, though, was how much he genuinely cared. Carlo went above and beyond for us when he absolutely didn’t have to. His communication was excellent, he kept us informed every step of the way, followed through on everything he promised, and treated us with honesty and respect. After feeling like we had been taken advantage of elsewhere, having someone actually listen to us, help us, and get the job done properly meant more than I can say. Carlo, thank you so much for everything you did for us. We are incredibly grateful. You truly went above and beyond. If you are looking for someone you can trust with your vehicle, I would recommend Carlo and Mr. Transmission Orangeville without hesitation. 5 stars doesn’t feel like enough!
Date: September 12, 2026
Website: Google
Excellent service from beginning to...
Jacob
Excellent service from beginning to end! I recently had my wife's car serviced and repaired at the Mister Transmission on Barton Street East, and I am very pleased with the experience. Dan was highly professional, and he and his team went above and beyond to ensure we were completely happy and satisfied. They even topped up our windshield washer fluid and washed our car! I highly recommend this Mister Transmission location for any vehicle services and repairs
Date: September 12, 2026
Website: Google
I was referred to Dan...
Brittney Wilcocks
I was referred to Dan by multiple garages in my hometown to fix my transmission. Dan and his team were very knowledgeable and fixed my van efficiently. He made sure I had a vehicle when I needed one and kept me in the loop the whole time. I would definitely go back!
Date: September 12, 2026
Website: Google
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