Can I Mix Power Steering Fluid With Transmission Fluid

No, you should never mix power steering fluid with transmission fluid. Power steering and transmission fluids are both lubricants but they have very different formulations. Mixing the two could lead to corrosion or damage to your car’s systems, such as: seals, hoses and gaskets becoming brittle and cracking; increased friction between components leading to higher temperatures; reduced efficiency of the power steering system or a decrease in performance of the transmission system; decreased oil pressure within either system resulting in further damage.

It is best to stick with one type of lubricant for each component of your vehicle instead of mixing them together.

  • Gather the necessary materials – Before beginning, make sure you have the right fluids for your vehicle
  • You will need power steering fluid and transmission fluid to complete this job
  • Locate the dipstick – Find where your car’s transmission dipstick is located and remove it from its housing
  • This can usually be found near the engine or in some cases underneath the hood of the car
  • Pour in power steering fluid – Slowly begin pouring in a small amount of power steering fluid into the reservoir until it reaches around one-third full
  • Make sure not to overfill! 4 Fill with transmission fluid – Now slowly pour in enough transmission fluid so that it reaches just below maximum level on your dipstick when reinserted into its housing (usually displayed by a “MAX” marking)
  • 5 Replace cap and test drive – Put back on any caps or covers before taking your vehicle for a short test drive to ensure everything is working properly and there are no leaks present

can i mix power steering fluid with transmission fluid

Is Power Steering Fluid Compatible With Transmission Fluid?

No, power steering fluid is not compatible with transmission fluid. Power steering fluids are made up of a special blend of synthetic base oils and performance additives designed to provide superior protection for modern power steering systems. Transmission fluids on the other hand are formulated with different viscosity levels and detergents that protect components such as gears, bearings and seals within the transmission system from wear caused by friction while also maintaining its lubricating properties under high temperatures.

These two types of fluid should never be mixed as it could cause severe damage to both the power steering system and automatic transmission components.

Can You Mix Power Steering Fluid And Atf in a Power Steering Pump?

No, you should not mix power steering fluid and ATF in a power steering pump. Different types of fluids have different properties that can cause damage to the seals, hoses, and other components in a power steering system. Power steering fluid is specially formulated for use with particular systems and vehicles so it is important to always check your owner’s manual for the correct type of fluid before adding any new fluid or making any changes to the system.

Additionally, mixing two different types of fluids can create an unstable mixture that may cause further damage if used in the long term.

Does Power Steering Fluid Affect Transmission?

No, power steering fluid does not have any direct effect on the transmission. While both systems use a hydraulic fluid and operate in a similar manner, they are separate entities that don’t interact with each other. Power steering fluid is used to help assist the driver when turning the wheel of a car while transmission fluid is responsible for lubricating and cooling your vehicle’s transmission components as well as ensuring proper shifting between gears.

It’s important to use the correct type of power steering fluid and keep it topped off to ensure optimal performance from your vehicle’s power steering system, but it won’t impact how your transmission performs or its lifespan.

What Can I Use in Place of Transmission Fluid?

In some cases, transmission fluid can be replaced with synthetic motor oil. This is often done when a vehicle has an old or worn out transmission that may not respond well to conventional fluids, and it’s also possible to mix the two types of fluids in order to get better performance from the transmission. However, this should only be done by a professional mechanic since mixing the two could cause further damage if not done properly.

Another option is Dexron III/Mercon ATF (automotive Transmission Fluid), which can sometimes be used as an alternative depending on your vehicle’s make and model. Be sure to check with your owner’s manual before attempting any replacements.

Can I Mix Power Steering Fluid With Transmission Fluid


Accidentally Put Transmission Fluid in Power Steering

If you accidentally put transmission fluid in your power steering system, it is important to address the issue as soon as possible. Transmission fluid can damage the power steering components and lead to costly repairs or replacements if left unchecked. To correct this mistake, you should drain all of the contaminated fluid from your power steering reservoir and replace it with fresh power steering fluid.

Additionally, any other parts that may have come into contact with the transmission fluid should be flushed out thoroughly before adding new fluid.

Can You Mix Power Steering Fluid With Brake Fluid

No, you should never mix power steering fluid with brake fluid. They have different compositions and can react adversely together if mixed, leading to potentially damaging effects on your car’s systems. Additionally, mixing the two fluids could contaminate either one or both of them, resulting in compromised performance of either the power steering system or braking system.

How to Tell the Difference between Power Steering Fluid And Transmission Fluid

Power steering fluid is typically a reddish color, while transmission fluid is usually pink or red. The two fluids have different viscosities and are not interchangeable; using the wrong type of fluid can lead to serious engine damage. When checking your vehicle’s fluids, you should always be sure to check the labels on each container and confirm that you’re using the right one for your car.


In conclusion, it is not a good idea to mix power steering fluid and transmission fluid together. This could cause major problems for your vehicle’s performance if done incorrectly. It is important to make sure you are using the correct fluids for each part of your car in order to ensure that it runs correctly and keeps its optimal performance over time.

Be sure to consult with an expert before attempting any kind of repair or maintenance on your car in order to avoid any costly mistakes.


  • Alex Gearhart

    Alex Gearhart, an automotive expert specializing in transmissions, has over a decade of hands-on industry experience. With extensive knowledge in manual and automatic systems, Alex is passionate about educating car enthusiasts on vehicle maintenance. As the chief author at, Alex simplifies complex concepts for readers, helping them make informed decisions about their vehicles. Outside of work, Alex enjoys road trips, restoring classic cars, and exploring new automotive technologies.

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