What Happens If I Put the Wrong Transmission Fluid in My Car?

August 28, 2022
Transmission flud service / flush

Transmission fluid lubricates the internal components of your transmission. It’s very similar to how oil works in the engine. To run correctly your car needs the correct transmission fluid specific for your car. You can find this information by checking your owner’s manufacturer handbook or contact a professional transmission mechanic like Eagle Transmission of Mesquite.

If the wrong transmission fluid is put into your transmission by accident, first thing to do is to avoid driving your car.  It can wreak havoc on your transmission resulting in damage beyond repair. 

 2 Main types of Transmission Fluids:

Automatic Transmission Fluid (ATF):

Automatic transmission fluid commonly referred to as ATF, is a type of transmission fluid used in vehicles with automatic transmission. An automatic transmission changes gears as required automatically. ATF is distinctly different from transmission fluid made for a manual transmission. Automatic transmission fluid ensures proper operation and protect the transmission. It is a key component of the system’s internal parts. It helps to lubricate moving parts and provides hydraulic pressure and fiction to make the internal parts operate and work correctly without overheating.

Continuously Variable Transmission Fluid (CVT):

Continuously Variable Transmission also know as CVT, is a type of transmission fluid specifically designed for passenger cars that uses a pair of variable-diameter pulley and belt or chain to provide unlimited gear ratios. CVT transmissions require CVT fluid which is formulated with full-synthetic, premium base oils, additives and shear stable viscosity modifiers that help prevent oil breakdown.

Accidentally Use Wrong Transmission Fluid:

Adding ATF to a CVT or vice versa is the most common situation of adding the wrong transmission fluid to your vehicle. This will eventually result in your transmission failing.

Warning Signs to look for:

1.       Burning Smell from the transmission or hood.

2.      Your car slips out of gear.

3.      You have difficulty in shifting gears.

4.      Grinding noise while driving

5.      Transmission fluid is leaking.

6.      Noisy sound while in neutral.

7.      The clutch locks up.

8.      Check engine light is on.

Wrong transmission fluid and what to do next:


If you use the incorrect transmission fluid, first step is to remove the fluid asap and get it check out by a shop that specializes in transmissions. This will minimize the amount of damage done to the transmission. If you have driven your car for a few miles already with the incorrect fluid, then it is possible you may need to replace your transmission.


Contact a transmission professional like Eagle Transmission Shop  in Mesquite we offer a free initial check out and service all of Dallas including Oak Cliff.

signs of a bad torque converter in dallas tx
By Eagle Transmission Repair Shop September 3, 2025
Signs and Symptoms of a Bad Torque Converter What are the signs of a bad torque converter? Slipping out of gear is a common sign ...
checking transmission fluid - transmission repair
August 14, 2025
The transmission is a complex machinery, but fortunately, it can show signs when there is a problem. If you have a transmission problem, it can affect the function of your entire vehicle.
Questions Answers sign - FAQs about Transmission Repair
August 7, 2025
Have a question about a transmission repair or transmission problem? Read some of our Frequently Asked Questions about transmission repairs or visit our FAQs page. You can also call us at Eagle Transmission Mesquite for any other questions you may have.
Torque converter in transmission shop
July 18, 2025
Torque converters have a complex design, but it can experience failure if symptoms go unchecked. The torque converter is a vital part for the function of automatic transmissions. It is what controls the shifting during accelerating and decelerating.
stop-and-go traffic is ruining your transmission
July 11, 2025
he daily stop-and-go traffic can cause more than just stress on you, but on your transmission as well. Your transmission can have major effects from stop-and-go traffic, especially when left unchecked.
Heavy duty truck - overheating transmission
July 3, 2025
Overheating is possible with any vehicle, but especially with heavy duty trucks that have to tow substantial loads. A minor overheat can lead to expensive repair, while worst case scenario can cause transmission failure.
Red Car - Transmission Repair
July 2, 2025
Transmission fluid lubricates and cools the transmission components. Without transmission fluid, the transmission will not function and ...
BMW - Transmission repair - Mesquite Texas
By John Henry February 26, 2025
Regardless of what type of BWM that you own, regular transmission maintenance is crucial for the efficiently and longevity of your BMW. Find out how to make your transmission last longer.
Check Engine Light On - Transmission Repair
December 1, 2024
If your vehicle is experiencing an error code that begins with “P”, then it indicates that you have a problem with the Powertrain, which could mean a transmission problem. This article with discuss how to know what your error code means.
Ford Truck - Transmission repair
November 20, 2024
If your Ford is showing you warning signs of a transmission problem, then it is important to not ignore them. So, it is vital that you know what the warning signs are for your Ford.