Understanding Transmission Fluid for Your Infiniti G35
When it comes to keeping your 2007 Infiniti G35 running smoothly, one of the most critical components to pay attention to is the transmission fluid. This fluid is essential for lubricating the moving parts within the transmission, ensuring that everything operates efficiently. Using the correct type of transmission fluid is not just a recommendation; it’s a necessity for the longevity and performance of your vehicle.
Manufacturer’s Recommendations
Infiniti has specific guidelines for the type of transmission fluid that should be used in the G35. According to the manufacturer, the recommended transmission fluid for the 2007 Infiniti G35 is Nissan Matic S . This fluid is specially formulated to meet the unique requirements of the Infiniti transmission system.
Specifications of Nissan Matic S
The Nissan Matic S fluid has several key specifications that make it suitable for your G35:
- Viscosity: The fluid has a viscosity rating that ensures optimal performance under various temperature conditions, allowing for smooth shifting and effective lubrication.
- Additive Package: It contains a specific blend of additives that help prevent wear and tear on transmission components, reduce foaming, and maintain fluid stability.
- Compatibility: Matic S is designed to be compatible with the materials used in the G35’s transmission, preventing issues such as seal degradation or fluid breakdown.
Why Use the Recommended Fluid?
Using the manufacturer-recommended transmission fluid is crucial for several reasons:
- Performance: The right fluid ensures that your transmission operates smoothly, providing seamless gear shifts and overall better performance.
- Longevity: Using Matic S helps extend the life of your transmission. The additives in the fluid work to protect against wear, reducing the likelihood of costly repairs down the line.
- Warranty Compliance: If your vehicle is still under warranty, using the specified fluid is often a requirement to maintain coverage. Deviating from these recommendations could void your warranty.
Where to Find Nissan Matic S
You can find Nissan Matic S at various auto parts stores, dealerships, and online retailers. Always ensure that you are purchasing genuine fluid to avoid any potential issues with quality or compatibility.
In summary, using the correct transmission fluid is not just about following the rules; it’s about ensuring that your 2007 Infiniti G35 runs at its best. Stick to Nissan Matic S, and you’ll be on the right track to a smooth and reliable driving experience.
Recommended Oil Brands for Your Infiniti G35

When it comes to maintaining your 2007 Infiniti G35, selecting the right transmission fluid is crucial. While Nissan Matic S is the manufacturer-recommended fluid, many owners have explored various brands that meet or exceed these specifications. Based on feedback from forums and owner experiences, here’s a rundown of some popular oil brands that G35 owners trust.
Nissan Matic S
Let’s start with the obvious choice: Nissan Matic S. This fluid is specifically designed for Infiniti vehicles, and many owners report excellent performance when using it.
- Owner Feedback: Users frequently mention smoother shifting and improved transmission responsiveness after switching to Matic S.
- Availability: It’s readily available at dealerships and many auto parts stores, making it a convenient option for most owners.
Valvoline MaxLife ATF
Valvoline MaxLife ATF is another popular choice among G35 enthusiasts. This fluid is formulated to provide superior protection and performance.
- Owner Feedback: Many users have reported that MaxLife helps reduce slipping and improves overall transmission performance.
- Versatility: It’s compatible with various automatic transmissions, making it a versatile choice for those who may own multiple vehicles.
Royal Purple Max ATF
Royal Purple is known for its high-performance lubricants, and their Max ATF is no exception.
- Owner Feedback: Users rave about the enhanced shifting performance and reduced heat generation when using Royal Purple Max ATF.
- Additive Technology: The fluid contains unique additives that help to clean and protect the transmission, which is a plus for long-term maintenance.
Mobil 1 Synthetic ATF
Mobil 1 is a well-respected name in the automotive industry, and their Synthetic ATF is often recommended by G35 owners.
- Owner Feedback: Many users appreciate the smoothness of shifts and the overall performance boost they experience with Mobil 1.
- Synthetic Advantage: Being a synthetic fluid, it offers better temperature stability and longevity compared to conventional fluids.
Castrol Transmax Import Multi-Vehicle ATF
Castrol’s Transmax Import Multi-Vehicle ATF is another option that has garnered positive feedback from G35 owners.
- Owner Feedback: Users have noted that this fluid provides excellent performance in various driving conditions, including stop-and-go traffic.
- Multi-Vehicle Compatibility: This fluid is designed for use in multiple import vehicles, making it a good choice for those who may own other brands.
Amsoil Signature Series Synthetic ATF
Amsoil is known for its high-quality synthetic oils, and their Signature Series Synthetic ATF is no different.
- Owner Feedback: Many G35 owners report that using Amsoil results in smoother shifts and better overall transmission performance.
- Long Life: The synthetic formulation is designed to last longer than conventional fluids, which can save you money in the long run.
Summary of Owner Experiences
From the feedback gathered across various forums, it’s clear that while Nissan Matic S is the go-to choice, many owners have had positive experiences with alternative brands. Here’s a quick comparison of the recommended brands based on owner feedback:
- Nissan Matic S – Best for manufacturer compliance and reliability.
- Valvoline MaxLife ATF – Great for those looking for versatility and performance.
- Royal Purple Max ATF – Ideal for high-performance enthusiasts.
- Mobil 1 Synthetic ATF – Excellent for temperature stability and longevity.
- Castrol Transmax Import – Good for multi-vehicle compatibility.
- Amsoil Signature Series – Best for long-term use and superior performance.
Choosing the right transmission fluid can make a significant difference in the performance and longevity of your Infiniti G35. Whether you stick with the manufacturer-recommended fluid or explore alternative brands, make sure to consider the experiences of fellow owners to guide your decision.
Change Interval for Your Infiniti G35 Transmission Fluid
Maintaining your 2007 Infiniti G35 involves regular checks and changes of the transmission fluid. Understanding the change interval is crucial for ensuring your vehicle operates smoothly and efficiently.
Recommended Change Interval
For the 2007 Infiniti G35, the general recommendation for changing the transmission fluid is every 30,000 to 60,000 miles (approximately 48,000 to 96,000 kilometers). However, this can vary based on driving conditions and habits.
- Severe Driving Conditions: If you frequently drive in stop-and-go traffic, tow heavy loads, or operate in extreme temperatures, you may need to change the fluid more often, around every 30,000 miles.
- Normal Driving Conditions: For typical driving conditions, a change every 60,000 miles is often sufficient.
Partial Transmission Oil Changes
One of the challenges with transmission fluid changes is that a complete fluid exchange often requires specialized equipment and can be labor-intensive, as it typically involves removing the transmission from the vehicle. This is where partial transmission oil changes come into play.
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 is more accessible for most car owners and can be performed without removing the transmission.
Benefits of Partial Changes
- Cost-Effective: Partial changes are generally less expensive than full fluid exchanges, making them more accessible for regular maintenance.
- Easier to Perform: This method can often be done with basic tools and doesn’t require specialized equipment.
- Gradual Improvement: Regular partial changes can help maintain fluid quality over time, gradually improving the overall health of the transmission.
Justification for Partial Changes
Statistical data from various automotive maintenance studies indicate that regular fluid changes, even partial ones, can significantly extend the life of your transmission. According to the Automatic Transmission Rebuilders Association (ATRA), maintaining clean transmission fluid can reduce the likelihood of transmission failure by up to 50%.
Moreover, a study published by the Society of Automotive Engineers (SAE) highlights that contaminants in transmission fluid can lead to increased wear and tear on transmission components. By regularly replacing a portion of the fluid, you can help mitigate these issues, ensuring that your transmission remains in good working condition.
Conclusion
In summary, adhering to the recommended change intervals for your Infiniti G35’s transmission fluid is essential for optimal performance. While full fluid exchanges are ideal, partial changes can serve as a practical alternative, helping to maintain the health of your transmission without the need for extensive labor.