Infiniti vehicles use two main categories of transmission fluid, depending on the type of transmission and model year: CVTs typically require Nissan CVT fluid NS-2 or NS-3, while traditional automatic transmissions generally use Dexron VI-compatible ATF. Always verify with the owner's manual or the service department before purchasing or topping off.
In this article, we break down the fluid options by transmission type, explain how to identify the correct specification, and outline practical steps to ensure you use the right fluid for your Infiniti model.
CVT-equipped Infiniti models
For models with a continuously variable transmission, fluid specification is tied to the CVT variant and production year. The two most common specifications are NS-2 and NS-3. Using the wrong fluid can affect performance and longevity, so confirmation is essential.
- Nissan CVT Fluid NS-2
- Nissan CVT Fluid NS-3 (used in newer CVTs that require a different friction profile)
In most CVT Infiniti applications, either NS-2 or NS-3 is appropriate depending on the exact transmission. If your vehicle's manual lists NS-2 or NS-3, use the one specified, and never mix NS-2 and NS-3 in the same system.
Infiniti traditional automatic transmissions
Some Infiniti models used traditional automatic transmissions rather than CVTs. For these, the fluid specification typically meets Dexron VI standards, or an OEM-approved equivalent specified in the owner's manual.
- Dexron VI automatic transmission fluid (ATF) or an OEM-approved equivalent that meets Dexron VI specifications
As with CVTs, verify the exact specification for your model/year, as some early automatics may have different requirements. Do not rely on a fluid from another category unless the manual confirms compatibility.
How to determine the right fluid for your Infiniti
To ensure you have the correct fluid, follow these identification steps before purchasing or servicing the transmission.
- Consult the owner's manual or official Infiniti service data for your exact model and year to confirm the required fluid specification.
- Check the transmission fill cap or dipstick for the printed specification (NS-2, NS-3, Dexron VI, etc.).
- If in doubt, contact an Infiniti dealer or an ASE-certified technician to verify compatibility.
Using the wrong fluid can reduce shifting performance, cause slipping, or shorten transmission life, so it's worth double-checking the spec.
Summary
Infiniti uses NS-2 or NS-3 CVT fluids for CVT-equipped models and Dexron VI-compatible ATF for conventional automatics. Because transmission fluid specifications vary by model and year, the safest approach is to consult the owner's manual or a certified Infiniti service professional to confirm the exact requirement for your vehicle.