Lexus NX Transmission Fluid Capacity

As the curtain rises on the automotive stage, few vehicles have garnered as much attention, adoration, and acclaim as the Lexus NX. Born in a competitive era where luxury SUVs command the market’s spotlight, the Lexus NX has brilliantly fused art with engineering, luxury with practicality, and performance with comfort.

But what’s the secret behind its success and longevity? Some might point to its sculpted design, while others may cite its innovative technology or performance metrics.

Yet, beneath the hood and coursing through the intricacies of its machinery, lies an unsung hero: the transmission fluid. It’s easy to overlook, given its silent and unassuming nature, but just as our bodies rely on the heart to pump life-giving blood, so does the Lexus NX rely on this vital fluid to keep it in prime condition.

Transmission fluid plays a quintessential role in ensuring that the ride remains as smooth as the day it rolled off the showroom floor. Acting as both a lubricant and a coolant, it guarantees that every gear shift is seamless, every acceleration is prompt, and every drive feels as fresh as the first.

2021 Lexus NX

While we marvel at the cutting-edge features and plush interiors, it is this often-forgotten fluid that ensures the Lexus NX’s legacy as a dependable luxury SUV.

Yet, like all heroes, it too needs care. Regular checks and timely replacements are pivotal for the fluid to bestow its magic upon the vehicle. In the subsequent sections, we’ll delve deeper into the intricacies of the Lexus NX’s transmission fluid – from the types to use across generations to the steps for checking and replacing.

Let’s embark on this journey together and give this unsung hero the recognition it so rightfully deserves.

The Significance of Transmission Fluid in the Lexus NX

In the realm of automobile mechanics, every component has its unique role, but few are as multifaceted as transmission fluid, especially in a luxury SUV like the Lexus NX. So, what exactly does this vital liquid do?

  1. Lubrication: At the heart of the Lexus NX lies its transmission system, a complex web of gears and moving parts. The fluid acts as a lubricant, preventing these parts from grinding against each other. By reducing friction, it ensures that the NX’s transmission operates smoothly, ensuring those signature seamless gear shifts.
  2. Cooling: Transmissions generate heat. Left unchecked, this heat can be detrimental to the vehicle’s performance. Transmission fluid plays a dual role here, dissipating this heat and ensuring that the transmission remains cool. This, in turn, prolongs the life of the vehicle.
  3. Transmission Health: A healthy transmission fluid ensures optimal hydraulic pressure, which is pivotal for gear shifts. Over time, the fluid might degrade and lose its effectiveness, leading to slower or less efficient gear transitions.
    The right fluid maintains the health and responsiveness of the transmission, which is crucial for the driving experience synonymous with the Lexus NX.

Potential Complications from Neglecting or Using Incorrect Fluid

It’s tempting to assume that any fluid would work, or that an occasional check is enough. However, the repercussions of such oversights can be significant:

  1. Transmission Damage: Using the wrong type of fluid or neglecting to replace degraded fluid can result in increased friction within the transmission. This can lead to wear and tear, premature aging of components, or, in worst cases, total transmission failure.
  2. Reduced Performance: As the quality of the fluid deteriorates or if it’s inappropriate for the model, the Lexus NX might exhibit delayed or rough gear shifts, loss of acceleration, or uncharacteristic noises.
  3. Decreased Fuel Efficiency: A well-maintained transmission system, facilitated by the right fluid, ensures optimal fuel efficiency. Negligence here might result in the Lexus NX consuming more fuel than necessary, leading to increased expenses and a larger carbon footprint.
  4. Cost Implications: Repairing or replacing a damaged transmission is considerably more expensive than regular fluid checks and changes. By neglecting this vital aspect, owners might face hefty bills in the future.

In essence, while the transmission fluid might seem like just another component in the vast machinery of the Lexus NX, its importance cannot be overstated. It’s a guardian, protector, and enhancer, all rolled into one.

Lexus NX hybrid

Lexus NX Transmission Fluid Capacity And Transmission Fluid Type

When it comes to maintaining a vehicle, knowing the specifics is essential. This is especially true for luxury SUVs like the Lexus NX, where even seemingly minute details can have a substantial impact on performance.

Among these details, understanding the correct transmission fluid type and capacity for each generation of the vehicle is crucial. Below, we dive into the specifics for each generation of the Lexus NX.

1st Gen (AZ10) 2015-2017 Lexus NX

The right transmission fluid is paramount in ensuring the Lexus NX’s gears shift smoothly, reducing wear and maximizing the life of the gearbox. Below are the specific fluid capacities and types for the 1st Generation Lexus NX:

GearboxFluid capacityFluid type
NX200t AWD U661FTotal fill: 6.9 quarts (6.5 liters)
Initial fill: 3 quarts (2.8 liters)
ATF WS
NX200t FWD U661ETotal fill: 6.9 quarts (6.5 liters)
Initial fill: 3 quarts (2.8 liters)
ATF WS
NX300h P3144 quarts (3.8 liters)ATF WS
  1. NX200t AWD U661F
    • Fluid Capacity:
      • Total fill: 6.9 quarts (6.5 liters)
      • Initial fill: 3 quarts (2.8 liters)
    • Fluid Type: ATF WS
  2. NX200t FWD U661E
    • Fluid Capacity:
      • Total fill: 6.9 quarts (6.5 liters)
      • Initial fill: 3 quarts (2.8 liters)
    • Fluid Type: ATF WS
  3. NX300h P314
    • Fluid Capacity: 4 quarts (3.8 liters)
    • Fluid Type: ATF WS

1st Gen (AZ10) Facelift 2018-2021 Lexus NX

The Lexus NX, post its facelift, continued its tradition of luxury and superior performance. Here are the specific transmission fluid capacities and types for the Lexus NX models from 2018 to 2021:

GearboxFluid capacityFluid type
NX300 AWD U661FTotal fill: 7.2 quarts (6.8 liters)
Initial fill: 3 quarts (2.8 liters)
ATF WS
NX300 FWD U661ETotal fill: 7.2 quarts (6.8 liters)
Initial fill: 3 quarts (2.8 liters)
ATF WS
NX300h P3144 quarts (3.8 liters)ATF WS
  1. NX300 AWD U661F
    • Fluid Capacity:
      • Total fill: 7.2 quarts (6.8 liters)
      • Initial fill: 3 quarts (2.8 liters)
    • Fluid Type: ATF WS
  2. NX300 FWD U661E
    • Fluid Capacity:
      • Total fill: 7.2 quarts (6.8 liters)
      • Initial fill: 3 quarts (2.8 liters)
    • Fluid Type: ATF WS
  3. NX300h P314
    • Fluid Capacity: 4 quarts (3.8 liters)
    • Fluid Type: ATF WS

2nd Gen (AZ20) 2022-Now Lexus NX

With the introduction of the second generation, the Lexus NX further stamped its authority in the luxury SUV segment. Building on its predecessor’s success, this generation brings refined engineering, updated tech, and a more compelling design.

Here are the precise transmission fluid capacities and types for the Lexus NX models starting from 2022:

GearboxFluid capacityFluid type
NX250 8-speed AWD UB80FTotal fill: 7.7 quarts (7.3 liters)
Initial fill: 3.4 quarts (3.2 liters)
ATF WS
NX250 8-speed FWD UB80ETotal fill: 7.7 quarts (7.3 liters)
Initial fill: 3.4 quarts (3.2 liters)
ATF WS
NX350 8-speed AWD UA81FTotal fill: 7.5 quarts (7.1 liters)
Initial fill: 2.9 quarts (2.7 liters)
ATF WS
NX350h P8104.6 quarts (4.4 liters)ATF WS
NX450h P8104.6 quarts (4.4 liters)ATF WS

Steps to Properly Check and Replace Transmission Fluid

Ensuring the longevity and optimal performance of your Lexus NX largely hinges on the proper maintenance of its transmission fluid. This essential fluid keeps the gears shifting smoothly, prevents overheating, and reduces wear and tear.

Below is a comprehensive guide to checking and replacing the transmission fluid for your luxury SUV.

Guide to Determining Fluid Levels

  1. Gear Up: Before you start, make sure you have gloves and safety goggles. Transmission fluid can be harmful if it comes into contact with the skin or eyes.
  2. Warm Up: Start your Lexus NX and let it run for a few minutes. This will warm up the transmission fluid, making it easier to check its level and condition.
  3. Locate the Dipstick: Open the hood and locate the transmission fluid dipstick. It’s typically marked and may be labeled “ATF” (Automatic Transmission Fluid).
  4. Check the Fluid: Pull out the dipstick, wipe it clean with a lint-free cloth, and then reinsert it fully. Pull it out again and check the fluid level. It should be between the “Full” and “Add” marks.
  5. Assess Fluid Condition: The fluid should be clear with a slight reddish hue. If it appears brownish, has a burnt odor, or contains particles, it may be time for a change.

Best Practices for Draining and Refilling Transmission Fluid Safely

  1. Safety First: Ensure the vehicle is on a level surface. Use jack stands if you need to elevate the car for better access.
  2. Drain the Fluid: Locate the transmission pan underneath the vehicle. Position a collection pan beneath it. Carefully remove the drain plug and allow the old fluid to drain out.
  3. Clean the Pan: Once drained, you can remove the transmission pan entirely. Clean it out, ensuring that you remove any particles or residue. Also, consider replacing the transmission filter at this time.
  4. Reinstall the Pan: After cleaning, reinstall the transmission pan. Ensure the seal is tight to prevent any potential leaks.
  5. Refill with New Fluid: Using a funnel, pour the new transmission fluid into the transmission through the dipstick tube. Be sure to use the type recommended for your Lexus NX and avoid overfilling.
  6. Check Levels Again: Start the vehicle and let it run for a few minutes. Then, with the engine still running, check the fluid level again using the dipstick. Add more fluid if necessary until it reaches the correct level.
  7. Test Drive: Take your vehicle for a short drive to ensure everything is working smoothly. Check for any leaks after the drive.

Conclusion

In the grand tapestry of car maintenance, the essence of transmission fluid is often overshadowed by more frequently discussed topics like oil changes or tire rotations. Yet, it’s this very fluid that plays a pivotal role in ensuring your Lexus NX performs at its peak, shifting smoothly and efficiently through every drive.

Routine checks of the transmission fluid shouldn’t be viewed as an optional task but as an essential part of the car ownership journey. Just like a well-tuned instrument delivers a flawless performance, a well-maintained Lexus NX provides an unparalleled driving experience.

Moreover, as with any luxury vehicle, the choice of what goes into it, including transmission fluid, shouldn’t be a game of eeny, meeny, miny, moe. Quality matters. Committing to regular maintenance is not just about preserving the car’s health, but also about respecting its pedigree.

The Lexus NX isn’t just any car; it’s a statement, a commitment to luxury, performance, and quality.

By ensuring that the right, high-quality transmission fluid is used, and by regularly checking and replacing it as needed, you not only guarantee the optimal performance of your NX but also ensure its longevity.

This attention to detail can save costly repairs down the line, safeguarding your investment and ensuring that every drive feels as luxurious as the first.

References and Resources

  1. Lexus Official Service Manuals: Your go-to source for detailed information about your Lexus NX. These manuals provide specifications, step-by-step procedures, and everything in-between.
  2. Trusted Online Lexus Forums: Online forums like ClubLexus or Lexus Enthusiast bring together a community of Lexus owners and enthusiasts. They are a goldmine for tips, tricks, and real-world experiences related to Lexus vehicles.

Author

The information provided in this article is intended for informational and educational purposes only and should not be construed as professional mechanical advice. While the author has made every effort to ensure the accuracy and completeness of the information in this article, we make no warranties or representations as to the accuracy, completeness, reliability, or suitability of the information provided.

Engineswork.com participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. As an Amazon Associate, we earn from qualifying purchases.

 

Leave a Comment

Your email address will not be published. Required fields are marked *