Revitalize Your Car’s Performance with 5R55 Transmission Fluid

5R55 Transmission Fluid

In this article, we will discuss the type of 5R55 transmission fluid your car uses, when to change it and why, and the capacity of the fluid with the torque converter in the system, as well as basics on how to check and change the fluid, the fluid’s flow properties and its temperature sensor. Finally, we’ll review the 5R55 transmission fluid change intervals and pressure sensor.

5R55 Transmission Fluid Type

The v2GM 5R55 transmission is designed to work best with full synthetic automatic transmission fluid with lubricant technology for improved friction, wear, and corrosion protection. 

This fluid is made to meet the requirements of DEXRON VI, and it has advanced friction modifiers and anti-wear agents that help extend the life of the transmission.

It’s important to use the type specified by your manufacturer, not an alternative, generic brand.

5R55 Transmission Fluid And Filter Change

5R55 Transmission Fluid

For the 5R55 transmission, you should change the fluid and filter when it passes the recommended mileage or time timeframe.

This will depend on the type and amount of use that your transmission has had, so always check your manufacturer’s guidelines.

During the fluid and filter changes, the old fluid must be removed to allow for a new fluid supply. The transmission should always be flushed before adding new fluid.

5R55 Transmission Fluid Capacity With Torque Converter

The capacity of the 5R55 transmission fluid is 11.2 quarts, including the fluid in the torque converter. This is the same fluid capacity when you change the fluid and filter.

How Much Fluid Does A 5R55 Transmission Hold?

The 5R55 transmission will hold 11.2 quarts of transmission fluid, including the fluid in the torque converter.

How Many Quarts Of Transmission Fluid Goes In A 5r55?

When you fill the 5R55 transmission’s fluid, you should use 11.2 quarts of fluid, which includes the fluid in the torque converter.

5R55 Transmission Fluid Check – How To

You should use the transmission dipstick to check the 5R55 transmission fluid level. Pull the dipstick out and wipe it clean before reinserting it.

Ensure the transmission is at its normal operating temperature, so it may take several minutes of idling or driving before you can check the fluid level. The fluid shouldn’t be above the “full” marker.

Read More About: 700R4 Transmission Fluid

5R55 Transmission Fluid Flow

The 5R55 transmission fluid is subjected to extremely high pressure when running. It runs through its internal passages and restrictions at very high speeds.

The 5R55 transmission’s valve body controls the flow of the transmission fluid, which also controls the shift speed and timing.

5R55 Transmission Fluid Capacity Dry

The capacity of the 5R55 transmission when it is dry is 11.1 quarts. Remember that this is dry and indicates the amount of fluid placed in the pan before installing the filter.

5R55 Transmission Fluid Temperature Sensor

The 5R55 transmission has a temperature sensor to monitor the transmission fluid’s temperature. It is located in the transmission pan.

The temperature sensor ensures that the transmission fluid stays within an ideal range.

5R55 Transmission Fluid Change Interval

The National Highway Traffic Safety Administration advises that most 5R55 transmissions should be changed at intervals of 30,000 miles for certain applications.

However, you should always consult your manufacturer’s manual for specific change intervals for your make and model.

5R55 Transmission Fluid Pressure Sensor

The 5R55 transmission has a pressure sensor that measures the pressure in the transmission and sends signals to the PCM. The PCM uses this data to adjust the shift points and other transmission functions.

5R55 Transmission Fluid Pressure Switch

The pressure switch on the 5R55 transmission is designed to detect when the pressure is too low, which may indicate a problem. The pressure switch will send a signal to the PCM and can trigger a hard shift.

What Does A 5R55s Transmission Fit?

The 5R55s transmission is a widely used five-speed automatic transmission that typically fits Ford Mustang and Mazda applications.

However, some iterations of this transmission have also been used in Hyundai, Kia and Mitsubishi vehicles.

The 5R55s uses a double-planetary gear set responsible for its smooth shift and power delivery.

Also Read: 4L60E Transmission Fluid

What Is DW1 Transmission Fluid?

DW1 transmission fluid is an oil specifically designed for 5R55s transmission. This fluid should not be confused with other commonly available automatic transmission fluids.

DW1 fluid differs in a number of ways, including higher viscosity and more friction modifiers.

This fluid is essential in helping the 5R55s shift smoothly and remain cool during intense driving.

Can You Change Transmission Fluid In A Sealed Transmission?

The 5R55s transmission is often called “sealed,” meaning it cannot be opened or modified without causing extensive damage.

Because it is sealed, the only way to change the transmission fluid is to install a replacement transmission.

This can be a labor-intensive and expensive process, so it’s important to ensure your transmission is not suffering from an issue requiring a new transmission before attempting a fluid change. 

5r55s Transmission Fluid Fill Adapter

A fluid fill adapter is one of the most convenient ways to change the transmission fluid in a 5R55s transmission.

This device works similarly to the ones used to refill the brake or power steering fluid. It allows you to attach the adapter to the top of the transmission case and pull out the old fluid while simultaneously filling it with the new transmission fluid.

Can You Mix Transmission Oil?

Mixing transmission oil is not recommended as it can cause drastic and irreversible damage to the 5R55s transmission.

As a result, it is advised that you stick with the same brand and type of transmission fluid when replacing it.

However, mixing different transmission fluids is partially out of the question, provided they are the same weight.

What Is 5R55 Transmission Fluid?

5r55 transmission fluid is a critical component of the 5r55 transmission system, which is commonly used in ford suv and trucks.

This fluid is essential for the proper functioning of the transmission system, ensuring that it operates smoothly, efficiently, and with minimal wear and tear.

In this blog post, we’ll take a closer look at 5r55 transmission fluid, breaking down its definition, composition, and importance for car performance.

Definition Of 5R55 Transmission Fluid

At its core, 5r55 transmission fluid is a type of hydraulic fluid that provides lubrication, cooling, and hydraulic pressure to the various components of the 5r55 transmission system.

It’s essential for ensuring proper gear shifting and smooth acceleration and deceleration.

5r55 transmission fluid is specifically formulated to meet the requirements of the 5r55 transmission system and is not interchangeable with other transmission fluids.

Composition Of 5R55 Transmission Fluid

The composition of 5r55 transmission fluid is relatively complex, as it is designed to meet the specific needs of the 5r55 transmission system.

Generally, 5r55 transmission fluid is made up of a mixture of base oils and additives, which work together to provide excellent lubrication, anti-wear properties, and anti-foaming capabilities.

Some common additives found in 5r55 transmission fluid include:

  • Viscosity index improvers: These additives help the fluid maintain proper thickness and flow properties at different temperatures.
  • Detergents and dispersants: These additives help to remove and prevent the buildup of sludge and debris within the transmission system.
  • Anti-wear agents: These additives help to prevent wear and tear on the transmission system’s various components, including gears, clutches, and bearings.
  • Friction modifiers: These additives help to reduce friction within the transmission system, improving efficiency and performance.

Why 5R55 Transmission Fluid Is Important For Car Performance?

5r55 transmission fluid plays an important role in ensuring proper car performance, making it a critical component of the vehicle’s overall health.

Here are a few reasons why 5r55 transmission fluid is essential for optimal car performance:

  • Lubrication: Without proper lubrication, the various components of the transmission system can experience significant wear and tear, leading to damage and failure. 5r55 transmission fluid provides the necessary lubrication to prevent this from happening.
  • Heat dissipation: As the transmission system operates, it generates a significant amount of heat, which can cause damage and excessive wear. 5r55 transmission fluid helps to dissipate this heat, ensuring that the system operates at a safe temperature.
  • Hydraulic pressure: The 5r55 transmission system is hydraulically controlled, with 5r55 transmission fluid providing the necessary pressure to operate the system’s various components. Without proper hydraulic pressure, the system can’t operate correctly, causing shifting issues, hesitations, and slippage.

5r55 transmission fluid’s importance should not be overlooked when it comes to ensuring vehicle performance and longevity.

With its specific formulation and engineered additives, 5r55 transmission fluid is crucial for the proper functioning of the 5r55 transmission system, providing the lubrication, cooling, and hydraulic pressure required for optimal operation.

Maintaining proper fluid levels and adhering to manufacturer-recommended replacement intervals is essential for preserving the health of your vehicle’s transmission system.

Also Check: Do You Check Transmission Fluid In Park Or Neutral?

Signs Your Car Needs New Transmission Fluid

Your car’s transmission fluid plays a crucial role in keeping your vehicle running smoothly.

It is responsible for lubricating the transmission’s moving parts, cooling down the transmission, and transmitting power from the engine to the wheels.

Over time, the fluid can degrade and lose its effectiveness, causing problems with your transmission.

Here are five signs that your car needs new transmission fluid.

Harsh Gear Shifting

If you notice that your car is shifting gears more roughly than usual, it may be due to low or dirty transmission fluid.

Worn-out fluid can cause your transmission’s gears to grind against each other, resulting in a jerky and jolting ride.

Possible solutions:

  • Drain and replace the transmission fluid with fresh fluid.
  • Perform a transmission flush to remove any contaminants and particles from the transmission.

Transmission Slippage

One of the most noticeable signs of low or dirty transmission fluid is transmission slippage.

Due to insufficient fluid levels or impurities in the fluid, your transmission can fail to maintain torque, which may result in the transmission slipping out of gear while driving.

Possible solutions:

  • Check and refill the transmission fluid to the recommended level.
  • If the fluid is very dirty, drain and replace it.
  • Repair or replace any damaged parts in the transmission.

Overheating Transmission

If your transmission fluid is too low or too old, it can lead to overheating of the transmission.

An overheated transmission can cause major damage to the transmission, leading to transmission failure and costly repairs.

Possible solutions:

  • Check coolant levels and ensure proper coolant circulation to prevent overheating.
  • Change the transmission fluid, and replace the filter if necessary.

Unusual Transmission Noises

If you hear any unusual sounds while shifting gears or driving, it could be a sign of low or dirty transmission fluid.

These sounds can include whining, humming, or clunking sounds coming from your transmission.

Possible solutions:

  • Check the transmission fluid level and color.
  • Drain and replace the fluid with new fluid if it is too low or too dirty.

Delayed Gear Engagement

If your transmission is slow to engage when you shift gears, it could be due to low or dirty transmission fluid.

The fluid serves as a lubricant for the gears and other moving parts, and without it, the transmission may take longer to respond than usual.

Possible solutions:

  • Check the transmission fluid level and color.
  • Replace the transmission fluid if it is old or contaminated.

By paying attention to the above signs and addressing any issues quickly, you can keep your transmission running smoothly and avoid costly repairs down the road.

Remember to check your car’s manual for recommended intervals for checking, changing, or replacing the transmission fluid.

YouTube video

Benefits Of Using 5R55 Transmission Fluid For Your Car

When it comes to maintaining your car’s performance, using the right transmission fluid can make all the difference.

The 5r55 transmission fluid is an excellent choice for car owners who want to improve their vehicle’s transmission performance.

Here are just a few benefits of using this type of transmission fluid:

Improved Transmission Performance

  • The 5r55 transmission fluid is designed to reduce friction, which results in a smoother and more efficient performance from your car’s transmission.
  • The fluid also provides better lubrication to the transmission, which helps keep the system running smoothly for longer periods of time.
  • Using 5r55 transmission fluid can help your car shift gears more easily, resulting in a more responsive driving experience for you.

Enhanced Fuel Efficiency

  • By using the 5r55 transmission fluid, you can help your car burn fuel more efficiently, which can lead to increased fuel economy and a reduction in overall operating costs.
  • The fluid helps to keep the transmission running at a cooler temperature, reducing drag and allowing your engine to operate more efficiently.

Increased Transmission Lifespan

  • Using quality 5r55 transmission fluid can help extend the life of your car’s transmission, as it provides optimal lubrication while also reducing wear and tear on the gears and bearings.
  • The fluid also helps to reduce the risk of overheating, which is a leading cause of transmission failure.

Smooth And Consistent Shifting

  • One of the most noticeable benefits of using the 5r55 transmission fluid is the smooth and consistent shifting performance that it provides.
  • The fluid helps to minimize the impact of gear changes on your car’s transmission, resulting in a more pleasant driving experience overall.

Reduced Transmission Wear And Tear

  • Regularly using the 5r55 transmission fluid can help reduce the amount of wear and tear that your car’s transmission experiences, meaning that you’ll spend less on repairs and replacements in the long run.
  • The fluid helps to reduce the accumulation of sludge and debris in the transmission, which can cause unnecessary damage and lead to costly repairs.

How To Choose The Right 5R55 Transmission Fluid?

Whether it’s for routine maintenance or for replacing a broken transmission, choosing the right 5r55 transmission fluid is essential.

Your transmission needs the best possible lubricant to function at its best and to have a long life.

Here are some key points to consider when selecting the right 5r55 transmission fluid.

Key Considerations For Choosing 5R55 Transmission Fluid

  • Type of transmission fluid: There are two types of transmission fluid—synthetic and dino (mineral-based). Synthetic fluid is the preferred choice for many drivers because it offers superior performance and protection, especially at high temperatures. Dino fluid, on the other hand, is less expensive and still gets the job done but doesn’t last as long as synthetic.
  • Viscosity ratings: When choosing transmission fluid, you need to consider the viscosity rating, which measures the fluid’s resistance to flow. The right viscosity rating helps your transmission work smoothly and efficiently. Ford recommends using a type f fluid that has a viscosity rating between 6.9cst and 7.6cst at 100°c.

Synthetics Vs. Dino Transmission Fluid

  • Synthetic transmission fluid lasts longer and provides better performance in high temperatures than dino transmission fluid. It also reduces wear and tear on the transmission and can help improve fuel economy. However, it is more expensive than dino fluid.
  • Dino transmission fluid is less expensive and, although it does not last as long as synthetic fluid, it still provides adequate lubrication for the transmission.

5R55 Transmission Fluid Viscosity Ratings

  • The recommended viscosity rating for 5r55 transmission fluid is between 6.9cst and 7.6cst at 100°c. If the viscosity is too low, it won’t lubricate the transmission properly, causing wear and tear. If it’s too high, it can cause sluggish shifting and unnecessary heat.
  • Choosing a fluid with the correct viscosity ensures that the fluid will protect the transmission and provide the right friction for optimal shifting.

Top 5 5R55 Transmission Fluid Brands

When it comes to the best brands of 5r55 transmission fluid, it’s hard to go wrong with the following choices:

  • Mobil 1 synthetic atf
  • Royal purple max atf
  • Valvoline maxlife multi-vehicle atf
  • Amsoil signature series multi-vehicle synthetic atf
  • Castrol transmax atf

All of these top brands are known for their high-quality synthetic transmission fluids that offer exceptional protection and improved performance.

For the longevity of your 5r55 transmission, it’s crucial to ensure that you choose the right transmission fluid.

By considering the viscosity ratings, fluid types, and top brands in the market, you’ll have an easier time selecting the best transmission fluid for your vehicle.

Also Read To Know: What Does Burnt Transmission Fluid Smell Like?

How To Change 5R55 Transmission Fluid In Your Car?

Tools And Materials Required

Before changing your car’s 5r55 transmission fluid, you’ll need to get the necessary tools and materials. Here are the things you need:

  • Vehicle ramps or jack stands and a floor jack
  • Drain pan and funnel
  • Socket set and wrenches
  • Torque wrench
  • Transmission fluid, make sure to check your car’s owner manual for the correct type and quantity
  • Replacement transmission fluid filter and pan gasket

Steps To Change 5R55 Transmission Fluid

Changing your 5r55 transmission fluid can help maintain the performance of your car’s transmission system, extend its lifespan, and save you from costly repairs. Follow these steps to do it yourself:

  • Start by parking your car on a level surface and engaging the parking brake. Turn off the engine and let it cool down before proceeding.
  • Use the floor jack to lift your car’s front end and place it on jack stands. If you don’t have jack stands, use vehicle ramps. Make sure that the car is stable and secure before crawling underneath it.
  • Locate the transmission pan and, using the socket set, loosen the bolts that secure it to the transmission.
  • Position the drain pan beneath the transmission pan and carefully remove the bolts, one at a time, until the pan is loosened enough for the fluid to start draining out.
  • Use the pan’s edges to steer the remaining fluid into the drain pan until it’s entirely empty.
  • Remove the transmission gasket and filter, which is usually held in place by clips or screws. Carefully clean the surface of the pan and valve body.
  • Replace the old gasket with a new one and reattach the filter. If necessary, use clips or screws to secure the filter in position.
  • Torque the bolts in a star pattern until they are tight and secure. Refer to your vehicle manual for the exact torque specifications.
  • Use the funnel to fill the transmission with fluid, using the quantity recommended in the owner’s manual. Run the engine for a few minutes to distribute the fluid, and then check the fluid level again.
  • Lower your car using the jack stands or vehicle ramps and drive it around the block, checking for any leaks or odd noises.

Diy Vs. Professional Service

Changing the 5r55 transmission fluid yourself can save you money and be more convenient, but it can also be time-consuming and complicated.

Here are some pros and cons of each.


  • Pros: Saves money, allows you to learn about your car’s transmission system, and can be done in the comfort of your own garage.
  • Cons: Time-consuming, requires the right tools, and if not done correctly, can result in costly damages.

Professional service:

  • Pros: Done by experienced technicians, saves time, and provides peace of mind.
  • Cons: More expensive, requires taking the car to a service center, and may not provide the opportunity to learn about your car’s transmission system.

Whether you choose to change the 5r55 transmission fluid yourself or take the car to a service center, make sure that the job is done correctly to avoid costly damages and keep your car running smoothly for longer.

Frequently Asked Questions On 5R55 Transmission Fluid

1. What Is The 5R55 Transmission Fluid?

The 5r55 transmission fluid is an automatic transmission fluid used in ford 5-speed automatic transmissions.

2. How Often Should The 5R55 Transmission Fluid Be Changed?

The recommended interval for changing 5r55 transmission fluid is every 30,000 to 60,000 miles, or as specified in your vehicle’s owner manual.

3. What Are The Signs Of Bad 5R55 Transmission Fluid?

Signs of bad 5r55 transmission fluid include slipping or delayed shifting, grinding noises, unresponsive gears, and burning smells.

4. Can I Use Other Types Of Transmission Fluid In My 5R55 Transmission?

No, it is not recommended to use other types of transmission fluid in your 5r55 transmission.

Always use the recommended type of transmission fluid specified in your vehicle’s owner manual.

5. Can Changing The 5R55 Transmission Fluid Improve Performance?

Yes, changing the 5r55 transmission fluid can improve performance by improving shifting, reducing slipping, and helping to extend the lifespan of the transmission.

However, it is important to use the recommended type of transmission fluid and to change it at the recommended intervals.

6. Can I Change The 5R55 Transmission Fluid Myself?

Yes, you can change the 5r55 transmission fluid yourself with proper knowledge and tools.

However, it is recommended to have it done by a professional to ensure it is done correctly and to avoid any potential costly mistakes.


When it comes to the 5R55s transmission fluid, it is essential that the proper fluid is used and replaced at the appropriate intervals.

DW1 transmission fluid is the ideal fit for this type of transmission, and a fluid fill adapter can be a helpful tool when changing the fluid.

Additionally, mixing transmission oils is not advised as it could cause permanent damage to the transmission.

*This post contains affiliate links. That means that if you make a purchase after clicking on a link I may earn a small commission at no extra cost to you. As an Amazon Associate, I earn from qualifying purchases.” Click here for more Info.

Similar Posts