Do I Need a Transmission Cooler?

By Mister Transmission

Transmission coolers help to protect your transmission when you turn up the heat.

Transmission Coolers help transmissions deal with the added stress and heat caused by towing boats, trailers and other heavy objects.

Each year, hundreds of thousands of automatic transmissions fail and the majority of them are due to overheating of the fluid.  Most of this overheating is due to today’s vehicles being engineered with downsized engines and transmissions in an effort to maximize fuel economy.  We demand the same or better performance from these smaller, more efficient powertrains, therefore they must work harder than ever before.

For the same reason, the addition of an auxiliary transmission fluid cooler isn’t just necessary for those who tow trailers anymore.  Many manufacturers are now also recommending the addition of a transmission cooler if you carry extra passengers or cargo (ie – vacation, car-pool), drive in stop-and-go traffic, drive in hot or very cold weather, or climb steep inclines.  This would likely be 90% of your customers, just as the above statistic would indicate.

Due to the extra strain placed on today’s vehicles, automatic transmissions require a lot from a transmission fluid.  The fluid must lubricate the moving parts, clean the interior surfaces, protect against corrosion, transmit energy, and most of all, cool the transmission.

When an automatic transmission’s temperature exceeds 200F, the transmission fluid is pushed to its limits. Overheated transmission fluid will break down causing seals to crack, moving parts to clash, and leaks to occur.  At Mister Transmission, we offer our own brand of high-quality transmission fluid coolers (also available at Canadian Tire) and the expertise to install them properly.

Mister Transmission’s aluminum-construction, transmission fluid coolers are among the best in the business.  Our coolers offer maximum heat dissipation by constantly swirling and agitating the fluid as it flows through, and with the addition of our thermostatic flow control we ensure that your customer’s transmission maintains the ideal temperature for shiftability and long-life.

There are many areas under the hood of a modern automobile where you could install a transmission cooler, but there’s really only one location where you will get the full 100% cooling efficiency.  You want to install the transmission fluid cooler in front of all other heat exchangers (ie – radiator, a/c condenser, etc) and in an area with good incoming airflow.

For every 20F degree drop in transmission fluid temperature, you can expect to extend the fluid and equipment life, thereby extending the life of the vehicle.  That’s why it is very important to have a quality transmission cooler, and more importantly, to have it professionally installed.

Mister Transmission recommends offering transmission fluid coolers to all of your customers since this would not only decrease the likelihood that they may suffer a premature transmission failure, benefiting both your customers and your business.  To ensure proper application and function of your customer’s transmission fluid cooler, we recommend you allow the experts at Mister Transmission to install it for you.

If you are interested in having a transmission cooler installed in your vehicle, please contact your local Mister Transmission and book an appointment for our FREE 21-Point Multi-Check Inspection.

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Customer Reviews
Top notch service. They got...
Tara Dowding
Top notch service. They got me fixed and on my way. Great communication - I would recommend
Date: February 14, 2025
Website: Google
In late December I got...
John Clark
In late December I got my oil changed at the Mr Lube on Henry St. All through January, whenever I drove I could smell oil burning. With the snow, I saw that the oil was leaking. I took it back to Mr. Lube and explained that it was leaking. They examined it, and told me it was transmission fluid. I believed them, and took it in to Mr. Transmission. Mr. Transmission looked and quickly diagnosed that the leak was engine oil, coming from around the filter. Mr. Transmission was fast, courteous, and didn't even charge me for their time. Thanks! You have my business if I need it down the road!
Date: February 14, 2025
Website: Google
Long overdue review! Top level...
Neil MacMillan
Long overdue review! Top level summary, bring your vehicle to Mike and Rabih, they provide exceptional service. Huge thanks to them for helping me through a complex challenge and being able to get my vehicle back on the road and me trusting it is fixed properly! They worked through an expensive challenge, as Stellantis dishonoured my extended warranty and I had to have the transfer case on my SRT Grand Cherokee rebuilt. Throughout the process he consulted with me, always advising on options cost-wise and reliability. 3 weeks ago I had an issue start in the same drivetrain space, so I first brought it back to Mr. Transmission. Mike has gone above and beyond in working through the cascade of issues: just picked the truck back up today and its driving like new! Thanks again guys, will be sending everybody I know your way.
Date: February 14, 2025
Website: Google
Kyle and his team did...
Wayne Orlick
Kyle and his team did another perfect job for me! This time on an import piece for my Spitfire. Excellent service and timing while sticking to the quoted price, again :)
Date: February 13, 2025
Website: Google
I’m incredibly impressed with the...
Katie Tremblay
I’m incredibly impressed with the service I received at Mr. Transmission! They quickly diagnosed and fixed the issue with my car, getting it running like new. Professional, efficient, and extremely well priced. Highly recommend them for any transmission needs!
Date: February 13, 2025
Website: Google
Kyle is one of the...
Greg Allen
Kyle is one of the nicest business owners that I've ever met. Noah and Mike were polite and knowledgeable, they explained my repair and got it done in the estimated time. I would definitely return and will recommend them. Thank You.
Date: February 12, 2025
Website: Google
The people at Mister transmission...
Philip Poplawchuk
The people at Mister transmission are simply the best, in my opinion. They went above and beyond just fixing what problem I was having with my car. Their knowledgeable staff was able to see potential problems with my car and advised me of the situation. They gave me options because they understood that not everyone could have everything fixed at the same time. Since they did a great job fixing my car, I have not had any problems. If ever I have problems again, they will be the first place I call for help Thank you Mister Transmission and your awesome staff
Date: February 12, 2025
Website: Google
Great experience with Mr T...
Sharron Mulvey
Great experience with Mr T on Bank Street. Noah has always friendly and helpful. Transmissions is their specialty but he was helpful in giving me information on a few other areas of concern with my vehicle (brakes and worn out tires). It was a quiet week, so he was able to assist with both, in addition to the transmission repair. Appreciated this!
Date: February 12, 2025
Website: Google
Kyle and his team at...
Stephanie Maurice
Kyle and his team at Mr. Transmission were fantastic! They resolved the problem in a timely manner and took the time to ensure I fully understood the issue. Their professionalism, expertise, and excellent customer service made the whole experience smooth and stress-free. Highly recommend!
Date: February 12, 2025
Website: Google
Great place good people
Wrightaway69
Great place good people
Date: February 12, 2025
Website: Google
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