2008 Infiniti G37 Transmission Fluid Type Guide

Understanding Transmission Fluid for Your Infiniti G37

When it comes to keeping your Infiniti G37 running smoothly, one of the most critical components to pay attention to is the transmission fluid. This fluid plays a vital role in ensuring that your vehicle’s transmission operates efficiently, providing the necessary lubrication, cooling, and hydraulic pressure to keep everything functioning properly.

Manufacturer’s Recommendations

For the 2008 Infiniti G37, the manufacturer recommends using Nissan Matic S transmission fluid. This specific fluid is formulated to meet the unique requirements of the G37’s automatic transmission system. Using the correct type of fluid is essential for maintaining optimal performance and longevity of your vehicle’s transmission.

Specifications of Nissan Matic S

Here are some key specifications and characteristics of Nissan Matic S transmission fluid:

• Type: Automatic Transmission Fluid (ATF)


• Viscosity: Typically, this fluid has a viscosity rating of around 9.0 to 12.0 cSt at 100°C.


• Color: Usually a reddish hue, which helps in identifying the fluid during checks.


• Base Oil: Synthetic base oils are often used to enhance performance and temperature stability.


• Additives: Contains specific additives to prevent foaming, oxidation, and wear, ensuring smooth operation.

Why Use the Recommended Fluid?

Using the manufacturer-recommended fluid is not just a suggestion; it’s crucial for several reasons:

1. Performance: Nissan Matic S is designed to provide optimal shifting performance under various driving conditions, ensuring that your G37 responds well whether you’re cruising on the highway or navigating city streets.


2. Longevity: The right fluid helps to reduce wear and tear on the transmission components, extending the life of your vehicle’s transmission.


3. Warranty Compliance: If your vehicle is still under warranty, using the recommended fluid is often a requirement to maintain warranty coverage.


4. Fluid Compatibility: Different transmission fluids have different chemical compositions. Using a fluid that doesn’t meet the specifications can lead to issues such as slipping, overheating, or even complete transmission failure.

Where to Find Nissan Matic S

You can find Nissan Matic S transmission fluid at various automotive parts stores, dealerships, and online retailers. Always ensure that you are purchasing from a reputable source to avoid counterfeit products that could harm your transmission.

In summary, using the correct transmission fluid for your Infiniti G37 is non-negotiable. Stick to Nissan Matic S, and your transmission will thank you for it.

Recommended Oil Brands for Your Infiniti G37

When it comes to maintaining your 2008 Infiniti G37, choosing the right transmission fluid is crucial. While the manufacturer recommends Nissan Matic S, many owners have shared their experiences with various brands that meet or exceed these specifications. Below, we’ll explore some of the most recommended oil brands based on feedback from automotive forums and owner reviews.

Nissan Matic S

Let’s start with the obvious choice—Nissan Matic S. This is the OEM (Original Equipment Manufacturer) fluid specifically designed for your G37. Many owners report that using this fluid results in smooth shifting and reliable performance.

• Pros: Tailored for your vehicle, ensures warranty compliance.


• Cons: Can be more expensive than other options.

Valvoline MaxLife ATF

Valvoline MaxLife ATF is a popular alternative among G37 owners. It is designed for high mileage vehicles and is compatible with Nissan Matic S specifications. Many users have praised its performance, especially in older models.

• Pros: Affordable, good for high mileage, offers excellent protection.


• Cons: Some users reported a slight delay in shifting compared to OEM fluid.

Mobil 1 Synthetic ATF

Mobil 1 is a well-known name in the automotive industry, and their synthetic ATF is often recommended for the G37. This fluid is designed to provide excellent thermal stability and protection against wear.

• Pros: High-quality synthetic fluid, great for extreme temperatures.


• Cons: Slightly more expensive than conventional options.

Castrol Transmax Import Multi-Vehicle ATF

Castrol’s Transmax Import Multi-Vehicle ATF is another option that many G37 owners have turned to. It is formulated to meet the needs of various import vehicles, including Nissan.

• Pros: Versatile, good performance in various conditions.


• Cons: Some users have reported that it may not shift as smoothly as OEM fluids.

Amsoil Synthetic ATF

Amsoil is known for its high-performance synthetic oils, and their ATF is no exception. Many enthusiasts recommend it for its superior protection and longevity.

• Pros: Excellent wear protection, long-lasting performance.


• Cons: Higher price point compared to other brands.

Royal Purple Max ATF

Royal Purple is another premium brand that has garnered a loyal following among G37 owners. Their Max ATF is designed to improve shifting performance and reduce wear.

• Pros: Enhanced performance, good for spirited driving.


• Cons: Pricey compared to standard options.

Owner Feedback and Experiences

Many owners have taken to forums to share their experiences with these transmission fluids. Here are some common themes:

1. Most owners agree that sticking with OEM fluids like Nissan Matic S is the safest bet, especially for those who prioritize warranty compliance.


2. Valvoline MaxLife has received positive feedback for its affordability and effectiveness in high-mileage vehicles.


3. Mobil 1 and Amsoil are often praised for their performance in extreme conditions, making them favorites among enthusiasts who drive their G37s hard.


4. Some users have mixed feelings about Castrol and Royal Purple, noting that while they offer good performance, they may not always match the smoothness of OEM fluids.

In summary, while Nissan Matic S is the go-to choice for your Infiniti G37, there are several other brands that have proven effective based on owner feedback. Whether you prioritize cost, performance, or longevity, there’s a transmission fluid out there that can meet your needs.

Change Interval for Your Infiniti G37 Transmission Fluid

Maintaining your 2008 Infiniti G37 involves regular checks and changes of the transmission fluid. Knowing when to change the fluid is crucial for ensuring the longevity and performance of your vehicle’s transmission.

Recommended Change Interval

For the Infiniti G37, the general recommendation for changing the transmission fluid is every 60,000 to 100,000 miles (approximately 96,000 to 160,000 kilometers). However, this can vary based on driving conditions and habits.

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 lead to faster fluid degradation.


• Driving Style: Aggressive driving or frequent high RPMs can put additional stress on the transmission, necessitating more frequent changes.


• Fluid Quality: Using high-quality fluids can extend the life of the transmission fluid, but it’s still essential to adhere to change intervals.

Partial Transmission Oil Changes

In many cases, a full transmission fluid change requires removing the transmission from the vehicle, which is a labor-intensive and costly process. As a result, many owners opt for partial transmission oil changes, also known as fluid exchanges or flushes.

What is a Partial Transmission Oil Change?

A partial transmission oil change involves replacing a portion of the old fluid with new fluid. This can be done through various methods, including:

1. Drain and Fill: This method involves draining the fluid from the transmission pan and then refilling it with new fluid. This typically replaces about 30-50% of the total fluid.


2. Fluid Exchange Machines: These machines can replace a higher percentage of the fluid (up to 90%) by using the vehicle’s pump to push out old fluid while simultaneously introducing new fluid.

Justification for Partial Changes

Partial changes are often recommended for several reasons:

• Cost-Effective: Partial changes are less expensive than full fluid changes, making them more accessible for many owners.


• Less Labor-Intensive: Since they don’t require removing the transmission, partial changes can be performed quickly and easily.


• Improved Fluid Quality: Regular partial changes can help maintain fluid quality, reducing the likelihood of transmission issues.

Statistical data supports the effectiveness of partial changes. According to a study by the Automatic Transmission Rebuilders Association (ATRA), regular fluid exchanges can significantly reduce the risk of transmission failure. They found that vehicles that underwent regular maintenance, including fluid changes, had a 50% lower failure rate compared to those that did not.

In summary, while the recommended change interval for your Infiniti G37 transmission fluid is typically between 60,000 to 100,000 miles, factors such as driving conditions and style can influence this. Partial transmission oil changes offer a practical and cost-effective solution for maintaining fluid quality without the need for a full transmission removal.