Do You Really Need To Change Your Transmission Fluid?

April 30, 2021 | By Mister Transmission

Do You Really Need To Change Your Transmission Fluid?

You’re supposed to change your transmission fluid every so often. But is that something you really need to concern yourself with? Just how important is it too change your transmission fluid?

What Is Transmission Fluid?

If transmission fluid is so important, we should probably all know what it is, right? Automatic transmission fluid (often just called “transmission fluid”) lubricates the components inside a vehicle’s transmission. Automatic transmission fluid also acts as a coolant. Not all automatic transmission fluids are the same, but synthetic fluids are often superior. In any event, your vehicle’s operating manual might indicate a recommended fluid for you. Automatic transmissions use automatic transmission fluid, as the name suggests. Manual transmissions can also use automatic transmission fluid, but they might also use regular motor oil or a transmission oil known sometimes called “heavyweight hypoid gear oil”. In addition to lubrication and cooling, transmission fluid can also clean and protect metal components, condition gaskets, and increase rotational speed and temperature range.

Do You Really Need To Change Transmission Fluid?

You definitely need to check your transmission fluid regularly and you will almost certainly need to top up your transmission fluid. At Mister Transmission, we urge our customers to err on the side of caution and check their transmission fluid every month. This will mean you can catch problems early on and also, it’s just good to get into a routine. Take ten minutes on the first Sunday of every month, for example, and check your transmission fluid.

You’re checking for two things. First, you’re checking the level of your fluid. If the fluid doesn’t reach the recommended level on your dipstick, you need to top it up. The second thing to check for is quality. Healthy transmission fluid is largely odourless and largely translucent (with a reddish tinge). If your transmission fluid smells bad or if it is discoloured, then there might be something wrong with your transmission. In this case, you might need to change your transmission fluid.

When Do You Need To Change Your Transmission Fluid?

If something looks to be wrong with your transmission fluid, bring it in to Mister Transmission for an inspection. We will look to see what the issue is, and we can change your fluid while we’re at it. But even if you don’t notice any issues, changing your transmission fluid every so often is a good practice. Every two or three years, change your fluid or bring it in for a change to ensure that your transmission is running at peak efficiency.

Mister Transmission

Mister Transmission offers quick and affordable transmission fluid changes for any model of car. To learn more, please contact us. We also have a comprehensive COVID-19 policy to keep everybody safe.

image-reviews image-reviews
Customer Reviews
Tonia was fantastic- great customer...
C M
Tonia was fantastic- great customer service
Date: March 10, 2026
Website: Google
I’ve been to Mister Transmission...
Randy G
I’ve been to Mister Transmission in Peterborough twice. The first time I had my trucks transmission, torque converter and differential fluids changed. The second time I was looking for a transmission part for an old vehicle. Both times the service was excellent and the staff were very knowledgeable and friendly. The price for the fluid change was great, they refused to take anything for the transmission part. Thank you
Date: March 10, 2026
Website: Google
Chris and his crew went...
FamousMinds
Chris and his crew went above and beyond to track down some hard to find parts for my Honda Odyssey transmission. It was a huge job with some setbacks from suppliers, but he never gave up and got the job done!
Date: March 10, 2026
Website: Google
Really good explanation by the...
Nuwan Suraweera
Really good explanation by the staff like What could be happened. What can be happen in the future. What do i need to do.Really happy about the service.
Date: March 10, 2026
Website: Google
My brother-in-law was skeptical when...
Frank Angus
My brother-in-law was skeptical when a dealer insisted our car needed a brand-new transmission and quoted a costly rebuild. Instead, he recommended Mister Transmission on Exeter Road in London to first have a look to see if they could rebuild it instead of buying a new transmission. We took his advice, and we are so glad we did. They thoroughly evaluated the car and determined the transmission was fine; the problem was something much simpler and far less expensive to fix. Their honest assessment substantially reduced the bill, and it restored our faith in finding trustworthy auto shops. Friendly, professional, and straightforward — I highly recommend Mr. Transmission, 300 Exeter Road, London.
Date: March 10, 2026
Website: Google
Julie was wonderful to deal...
Anna Halford
Julie was wonderful to deal with. She helped us tremendously to get our son’s vehicle repaired. Would definitely recommend them for future services.
Date: March 10, 2026
Website: Google
They did a great job...
Warren Pulling
They did a great job with my caravan. Great service, quick turn around. Thanks
Date: March 9, 2026
Website: Google
Got all my fluids changed...
Ahmer Zaki
Got all my fluids changed here on my Mercedes very good prices and they do an excellent job definitely coming back here and would highly recommend
Date: March 7, 2026
Website: Google
This location is the best....
Brandon Callaway
This location is the best. Chris is amazing to deal with. Had a torque converter and rear diff replaced and they did it really fast. Highly recommend these guys. 5 out of 5 stars
Date: March 7, 2026
Website: Google
Thank you, Giorgio! An honest...
Bobh Yyz
Thank you, Giorgio! An honest operator…I stopped by his Mister Transmission as a mechanic diagnosed a slow leak under my car as transmission fluid.Regardless of being tied up, Giorgio came out front to my Jeep Wrangler, crawled under, came back up, and said looks and smells like oil.He suggested the auto service shop next unit over. We went in and our explained the situation to the operator. I’m in good hands with the service shop now.Bottom line: Giorgio’s good turn, at no cost to me, quickly helped steered me in the right direction.
Date: March 6, 2026
Website: Google
Featured Services
Transmission Repair

The evolution of transmissions has made these machines and systems increasingly complex. When transmission repairs are required, determining the cause and cure for what ails can be tricky.

Read More
Transmission Technology

At Mister Transmission we have access to leading-edge diagnostic equipment, enabling us to offer you the fastest and most accurate findings about what’s going on inside your vehicle’s transmission.

Read More
Transmission Maintenance & Service

Just as you have other parts of your car serviced, your transmission needs maintenance to ensure a long life and avoid transmission problems.

Read More
Mister Transmission Blogs
Recent Blogs
Understanding GM 6L80 Transmission Codes...
If your GM 1500 has triggered a check engine light or is displaying
Read More
March 2, 2026
Transmission Replacement: When Your Vehi...
A full transmission replacement is one of the most significant services a vehicle may
Read More
February 27, 2026
Honda Transmission Repair: Understanding...
Honda transmissions are known for their smooth shifting, fuel efficiency, and long
Read More
February 20, 2026
Transmission Fluid Change: Benefits Of P...
Modern vehicles depend on advanced transmission systems that require proper care to
Read More
February 13, 2026
Transmission Shop: How Certified Technic...
A certified transmission shop gives drivers confidence because every repair is
Read More
February 6, 2026
Transmission Fluid Change: Why Preventat...
Transmission fluid plays a crucial role in the overall performance of your vehicle.
Read More
January 30, 2026
Dodge Transmission Repair: Symptoms Driv...
Dodge vehicles are known for their power, performance, and strong engines, but the
Read More
January 23, 2026
Ford Transmission Problems: Why Early Si...
Transmission problems in Ford vehicles rarely appear without warning. They begin as
Read More
January 15, 2026
Honda Transmission Replacement: Common W...
Honda vehicles are well known for their smooth performance, dependable engines, and
Read More
January 7, 2026
Transmission Rebuild Vs. Repair: Underst...
Your transmission plays a major role in how your vehicle performs on the road. It
Read More
December 31, 2025