The 2011 Nissan Altima uses different transmission fluids depending on the transmission type: CVT models require Nissan CVT Fluid NS-2, while V6 models with the 5-speed automatic use Nissan Matic-S ATF.
In 2011, Altima buyers could choose between two drivetrains: a Continuously Variable Transmission (CVT) paired with the 2.5-liter engine, or a traditional 5-speed automatic paired with the 3.5-liter V6. Using the correct fluid is essential for smooth shifting and long transmission life. The following guide explains the fluids and how to confirm which transmission you have.
Two transmissions were available in the 2011 Altima, each using a different fluid.
- 2.5L models with Xtronic CVT: Nissan CVT Fluid NS-2 (NS-2 is the standard specification for most 2011 Nissan CVTs; NS-3 is a later revision used on some newer CVTs, but not typically required for the 2011 Altima).
- 3.5L V6 models with a conventional 5-speed automatic (RE5R05A): Nissan Matic-S ATF. Do not substitute Dexron III/VI unless specifically approved by Nissan for your vehicle.
Always verify the fluid type in your owner's manual or with a dealer, and do not mix fluids across transmission types.
To confirm which transmission is in your car and ensure you use the correct fluid, check these items:
- Consult the owner’s manual or the vehicle’s door jamb placard for the listed transmission type.
- Check the vehicle identification number (VIN) to determine drivetrain configuration (2.5L CVT vs. 3.5L 5-speed auto).
- Inspect the engine bay for a transmission code or consult Nissan service documentation for your exact build.
- If you’re still unsure, contact a Nissan service advisor with your VIN to confirm the correct fluid specification.
Once you’ve confirmed the transmission type, use the recommended fluid precisely to maintain performance and warranty coverage.
Summary
In short, a 2011 Altima’s transmission fluid depends on the transmission: NS-2 CVT fluid for the 2.5L CVT models, and Matic-S ATF for the 3.5L V6 with the conventional 5-speed automatic. Always double-check your owner’s manual or with a Nissan dealer to confirm the exact spec for your VIN before servicing or refilling.