2018 Nissan Altima Transmission Fluid Type Guide

Understanding Transmission Fluid Specifications

When it comes to keeping your 2018 Nissan Altima running smoothly, one of the most critical components to pay attention to is the transmission fluid. Using the right type of fluid is essential for optimal performance and longevity of your vehicle’s transmission system. Let’s break down what you need to know about the transmission fluid specifications for your Altima.

Manufacturer’s Recommendations

Nissan has specific requirements for the transmission fluid used in the 2018 Altima. According to Nissan’s guidelines, the recommended transmission fluid is Nissan CVT Fluid NS-3 . This fluid is specially formulated to meet the unique demands of Continuously Variable Transmissions (CVTs), which are designed to provide a smoother driving experience and improved fuel efficiency.

Why Use Nissan CVT Fluid NS-3?

Using the manufacturer-recommended fluid is not just a suggestion; it’s a necessity. Here’s why:

• Compatibility: Nissan CVT Fluid NS-3 is designed to work seamlessly with the transmission components, ensuring proper lubrication and function.


• Performance: This fluid helps maintain optimal performance levels, allowing for smooth acceleration and deceleration.


• Temperature Stability: The fluid is engineered to perform well under varying temperature conditions, which is crucial for the longevity of your transmission.


• Wear Protection: It contains additives that protect against wear and tear, reducing the risk of costly repairs down the line.

Specifications Overview

Here are some key specifications for the Nissan CVT Fluid NS-3 that every Altima owner should be aware of:

1. Viscosity: The fluid has a specific viscosity rating that ensures it flows correctly through the transmission system, providing adequate lubrication at both low and high temperatures.


2. Friction Characteristics: The fluid is designed to provide the right amount of friction needed for the CVT to function effectively, preventing slippage and ensuring efficient power transfer.


3. Oxidation Resistance: The formulation includes additives that resist oxidation, which helps maintain fluid integrity over time and prevents the formation of harmful deposits.

Where to Find the Right Fluid

You can find Nissan CVT Fluid NS-3 at authorized Nissan dealerships or reputable auto parts stores. Always check the label to ensure you are getting the correct fluid, as using the wrong type can lead to serious transmission issues.

In summary, using the correct transmission fluid is vital for the health of your 2018 Nissan Altima. Stick to Nissan CVT Fluid NS-3 to keep your vehicle running smoothly and efficiently.

Recommended Oil Brands for Your Transmission Fluid

When it comes to maintaining your 2018 Nissan Altima, choosing the right transmission fluid is crucial. While Nissan CVT Fluid NS-3 is the manufacturer’s recommendation, many owners have shared their experiences with various brands that meet or exceed these specifications. Let’s dive into some of the most popular and trusted oil brands based on feedback from forums and owner reviews.

Nissan CVT Fluid NS-3

While it’s the manufacturer’s choice, it’s worth mentioning that many Altima owners swear by Nissan CVT Fluid NS-3 for its compatibility and performance. Users report:

• Seamless Operation: Owners have noted that using this fluid results in smooth shifting and reliable performance.


• Longevity: Many have experienced fewer transmission-related issues when sticking to the OEM fluid.

Valvoline CVT Fluid

Valvoline is a well-known name in the automotive industry, and their CVT fluid has garnered positive feedback from Altima owners. Here’s what users have to say:

1. Performance: Many users report that Valvoline CVT fluid provides smooth shifts and maintains performance even under heavy driving conditions.


2. Affordability: Valvoline tends to be more budget-friendly compared to OEM options, making it a popular choice for cost-conscious owners.


3. Compatibility: Users have confirmed that it works well with Nissan CVTs, providing a reliable alternative to the OEM fluid.

Castrol Transmax CVT

Another brand that has gained traction among Altima owners is Castrol. Their Transmax CVT fluid is often recommended for its performance characteristics:

• Enhanced Protection: Many users appreciate the added protection against wear and tear, which can prolong the life of the transmission.


• Temperature Stability: Owners have noted that this fluid performs well in both hot and cold conditions, ensuring consistent operation.

Mobil 1 CVT Fluid

Mobil 1 is synonymous with high-quality lubricants, and their CVT fluid is no exception. Feedback from Altima owners includes:

1. High Performance: Users report that Mobil 1 CVT fluid delivers exceptional performance, particularly in terms of smooth shifting and responsiveness.


2. Trusted Brand: Mobil 1 has a long-standing reputation for quality, which gives many owners peace of mind when choosing their fluid.

Amsoil CVT Fluid

Amsoil is known for its premium synthetic oils, and their CVT fluid has been well-received among Nissan Altima owners. Here’s what the community says:

• Synthetic Advantage: Many users appreciate the synthetic formulation, which offers better protection and performance compared to conventional fluids.


• Longevity: Owners have reported longer intervals between fluid changes when using Amsoil, making it a cost-effective option in the long run.

Royal Purple CVT Fluid

Royal Purple is another brand that has made a name for itself in the automotive world. Feedback from Altima owners highlights:

1. Improved Shifting: Users have noted that Royal Purple CVT fluid enhances shifting performance, making for a more enjoyable driving experience.


2. High Quality: Many owners trust Royal Purple for its high-quality formulations that are designed to outperform conventional fluids.

In summary, while Nissan CVT Fluid NS-3 is the go-to recommendation, various brands like Valvoline, Castrol, Mobil 1, Amsoil, and Royal Purple have proven to be reliable alternatives based on owner feedback. Always remember to check compatibility and ensure that the fluid meets the necessary specifications for your 2018 Nissan Altima.

Change Interval for Transmission Fluid

Keeping your transmission fluid fresh is crucial for the longevity and performance of your 2018 Nissan Altima. The change interval for transmission fluid can vary based on driving conditions, but general guidelines suggest changing the fluid every 30,000 to 60,000 miles (approximately 48,000 to 96,000 kilometers ). However, it is essential to consider your driving habits and environment when determining the best interval for your vehicle.

Factors Influencing Change Intervals

Several factors can affect how often you should change your transmission fluid:

• Driving Conditions: Frequent stop-and-go traffic, towing, or driving in extreme temperatures can accelerate fluid degradation.


• Driving Style: Aggressive driving can put additional strain on the transmission, leading to faster fluid breakdown.


• Vehicle Usage: If you use your Altima for heavy-duty purposes, such as towing or carrying heavy loads, you may need to change the fluid more frequently.

Partial Transmission Oil Changes

In many cases, a complete transmission fluid change requires removing the transmission from the vehicle, which can be a labor-intensive and costly process. This is why partial transmission oil changes are often recommended as a practical alternative.

What is a Partial Transmission Oil Change?

A partial transmission oil change involves draining a portion of the old fluid and replacing it with new fluid. This method can help maintain fluid quality without the need for a full transmission service. Here are some key points to consider:

1. Fluid Refreshment: A partial change can help refresh the fluid, improving its properties and extending its life.


2. Cost-Effective: It is generally less expensive than a complete fluid change, making it more accessible for many vehicle owners.


3. Less Downtime: Since it does not require extensive labor, a partial change can be done quickly, reducing the time your vehicle is out of commission.

Justification for Partial Changes

Statistical data from automotive maintenance studies indicate that regular partial fluid changes can significantly enhance the performance and lifespan of a vehicle’s transmission. According to a study published by the Automotive Research Institute , vehicles that underwent regular partial fluid changes experienced:

• 30% Longer Transmission Life: Regular maintenance, including partial changes, led to a substantial increase in the lifespan of the transmission.


• Improved Shifting Performance: Owners reported smoother shifting and better overall performance when maintaining fluid levels through partial changes.

In summary, while the recommended change interval for your transmission fluid is generally between 30,000 and 60,000 miles, the necessity of partial oil changes cannot be overlooked. They offer a practical solution to maintaining fluid quality without the need for a full transmission service, ultimately contributing to the longevity and reliability of your 2018 Nissan Altima.

What Color Should Transmission Fluid Be?