How to Check Transmission Fluid

May 1, 2020 | By Mister Transmission

How to Check Transmission Fluid

Regular checking of your transmission fluid is a vital practice to keep up the health of your transmission. Regular transmission fluid checks could save you a lot of money in the long run. But how do you do it?

Not every transmission problem is caused by a problem with the transmission fluid. However, pretty much any transmission problem could be caused by a problem with the transmission fluid.

Your transmission fluid is vital to the health of your transmission. It’s lubricant, it’s coolant, it’s the lifeblood of the transmission. You need to make sure you have enough of it and you need to make sure it’s in good condition. If not, you need to top it up and/or bring your vehicle into a transmission shop to find out the root of the problem.

Now that we’ve established the importance of transmission fluid, you need to know how to check it. You should check your transmission fluid about once a month or whenever you suspect a problem. Here’s how to check your transmission fluid:

  • Step One: Shift your vehicle into neutral or park and put the parking brake on; let your engine run. The engine has to be warm, so don’t turn it off. Pull out your dipstick. Don’t confuse the transmission fluid dipstick for the oil dipstick. In an inline engine, the transmission fluid dipstick is further in, closer to the body of the vehicle. In a front-wheel drive vehicle, it is on the driver’s side. Check your manufacturer’s booklet to find out exactly where your transmission fluid dipstick is.
  • Step Two: Check the fluid. Insert your dipstick into the fluid and then remove it. Look to see if it comes up to “full” line on the dipstick. If not, use a funnel to top up your transmission fluid. Do not overfill it. Keep the engine running for this. If you find you have to add fluid every time you check it, something is wrong. Bring your vehicle in for inspection.
  • Step Three: Touch your finger to the fluid on the dipstick and rub the fluid between your finger and thumb. Good transmission fluid is mostly clear with a reddish tint and neutral odour. Dark coloured or foul-smelling fluid is bad. These qualities indicate a problem with your transmission. Do not ignore these impurities. Bringing in your vehicle now could save you from paying thousands of dollars later for a transmission overhaul.
  • Step Four: Wipe the dipstick with a clean, lint-free rag. Congratulations, you’re done! You just checked your own transmission fluid.
  • Step Five: Most newer vehicles do not have an accessible dipstick in this case you need to bring your vehicle in to a transmission service centre for an inspection.

Mister Transmission

To learn more about transmission fluid or to have your transmission fluid inspected or flushed out, please get in touch with us at Mister Transmission today.

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Great experience! I needed a...
Dawn Patterson
Great experience! I needed a new transmission in my accessible van and they got it done as soon as they could to get us back on the road!! Thank you!!
Date: January 24, 2026
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After going to several transmission...
Adrian Ibarra
After going to several transmission shops, I spoke to Chris and chose to get my 245mm Circle D converter installed here. Communication was effortless, prices were clear and I had zero qualms leaving my baby in their hands. I'm definitely coming back again cause these guys care
Date: January 24, 2026
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Mark Dundas
Dropped my truck off monday it was ready thrusday. I couldnt afford my repair i knew it was goimg to be expensive going in. They help me find a wicked finacing deal i could afford . They spent hours and hours helping me find my best option amd cheapest . Buddy behind the desk i am bad with names dude sorry u and i talked everyday i still forget your name maybe joe. Also cam i remember csuse i have your name writen down. But thanks guys i am going to get my daughter saftly to kingston this weekend because of u. Recommend tbis place 100 percent over that other transmission shop in PETERBOROUGH. No run around and honest thanks again guys.
Date: January 24, 2026
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Joe is the best guys...
봉태환
Joe is the best guys in here Toronto Confidence & sincerity
Date: January 23, 2026
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First of all a huge...
Martha Banwell
First of all a huge thank you to Julie for all of her help and expertise when dealing with the transmission rebuild on our Dodge Grand Caravan. She is very professional, knowledgeable and a pleasure to chat with. I wish all business's had staff like her. We had a great experience at Mr. Transmission and I will definately refer my friends. The mechanics were very quick to diagnose and only recommened what was needed. They were great in keeping us up to date with the progress of our repair. Thank you all for giving us piece of mind with our vehicle.
Date: January 23, 2026
Website: Google
Great communication and great service...
Ben Olsen
Great communication and great service from the folks at Mr. Transmission. All work was completed in a timely fashion, and quality is second to none
Date: January 23, 2026
Website: Google
Giorgio really knows what he’s...
Bilal Mirza
Giorgio really knows what he’s doing. While other shops were quick to suggest an expensive transmission rebuild on my Buick Lucerne, he actually took the time to assess the problem properly. He confidently explained that the transmission was fine and that the real issue was a misfire—and he was completely right. He saved me a lot of money and unnecessary hassle. Highly recommend him.
Date: January 23, 2026
Website: Google
Joe is the best guys...
봉태환
Joe is the best guys in here Toronto Confidence & sincerity
Date: January 23, 2026
Website: Google
When you have internal issues...
Christine (Warminthebay)
When you have internal issues you see a “specialist not a general practitioner” I needed a specialists for my transmission and the staff here are definitely special and caring there work and the efforts above and beyond! Jen so very helpful and thankfully she is very patient ;) I recommend them if you’re ever in need of any specializing!!
Date: January 23, 2026
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Shout out to Gus! Thank...
Lee Aragones
Shout out to Gus! Thank you for your help in making me understand better the situation in my car problem. What an exceptional customer service,! Spending time to LISTEN and explain without any charge and making sure that I understood the challenges I am going thru with my transmission issues. Much appreciated, Gus!
Date: January 23, 2026
Website: Google
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