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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Short and sweet. Had a Trans done in Pickering. Had a problem with seal leakage. Returned to Pickering location and no longer there. Drove to Mr Trans on Westney 195. Explained my problem. Steven the manager spoke to tech Tom and gave me a solution. Tom dismantled complete Trans. Found some serious flaws and proceeded to remedy them. Their work ethic customer service is top notch. Dealing with these guys is both comforting and educational. I highly recommend this specific shop for all transmission work bar none. Thanks again Steven and Tom. .
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Excellent customer service from start to finish !!! Aki/Manager ,Jody/Service Advisor and Sal went the extra mile to get the transmission connector pipe from an out of town parts dealer as the local dealer was unable to deliver it on time as promised. They replaced the leaking pipe due to rust perforation and also proactively recommended replacing the other rusted transmission pipe above it for peace of mind. This is a common problem for some Toyota Highlanders and Matrix models.The time it took to do the job by lowering the sub-frame was accurate and professionally completed. I highly recommend this branch.
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Excellent customer service from start...
Armando
Excellent customer service from start to finish !!! Aki/Manager ,Jody/Service Advisor and Sal went the extra mile to get the transmission connector pipe from an out of town parts dealer as the local dealer was unable to deliver it on time as promised. They replaced the leaking pipe due to rust perforation and also proactively recommended replacing the other rusted transmission pipe above it for peace of mind. This is a common problem for some Toyota Highlanders and Matrix models.The time it took to do the job by lowering the sub-frame was accurate and professionally completed. I highly recommend this branch.
Date: July 13, 2026
Website: Google
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Mia Johnson
If you want to remove negative reviews from your Google Business, contact me via my profile; my contact details are listed there. After work you can pay..
Date: July 13, 2026
Website: Google
If you want to remove...
Mia Johnson
If you want to remove negative reviews from your Google Business, contact me via my profile; my contact details are listed there. After work you can pay..
Date: July 13, 2026
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