The type you need depends on your transmission: CVT Altimas use Nissan CVT Fluid NS-2 or NS-3 (not interchangeable with conventional ATF). Traditional automatics use the specific Nissan ATF named in your owner's manual.
In this report, we explain how to identify your Altima’s transmission and what fluids are recommended by model year and transmission type, along with practical maintenance guidance.
Identify your Altima’s transmission
To determine the right fluid, start by identifying whether your Altima has a CVT or a traditional automatic. Look for a CVT badge on the shifter, check the owner’s manual, or inspect the transmission code label under the hood or on the dipstick (locations vary by year). If you’re unsure, a Nissan dealer can confirm the exact specification from your VIN.
CVT (Xtronic) Altimas
For CVT-equipped Altimas, use Nissan CVT Fluid NS-2 or NS-3 depending on model year and the specification listed in your manual. Do not mix NS-2 and NS-3 fluids, and never substitute conventional automatic transmission fluid in a CVT unless explicitly instructed by Nissan.
- NS-2 CVT Fluid — the traditional choice for many older CVT Altimas
- NS-3 CVT Fluid — a newer formulation for many later-model CVTs; confirm compatibility with your year and model
Bottom line: verify the exact CVT fluid requirement for your car in the owner’s manual or a Nissan service bulletin, since some late-model Altimas may specify NS-3 instead of NS-2.
Conventional automatic transmissions
Some Altima generations used a traditional automatic transmission. The correct ATF depends on the model year and transmission family. Always follow the exact specification listed in the owner’s manual or on the transmission dipstick label.
- ATF Matic D — commonly cited for older Nissan automatics
- Dexron III/Mercon-type ATF — used in various older Nissan automatics when specified by the manual
- Other Nissan ATF types (for example Matic J or Dexron VI) — only if your manual specifies them
Carefully verify with the manual; using a fluid that isn’t specified can affect shifting quality and longevity.
Practical maintenance tips
Always use the exact specification listed by Nissan for your model year. Do not mix transmission fluids, especially NS-2 with NS-3 in CVTs. When in doubt, consult your dealer or a trusted mechanic and refer to your VIN-specific service bulletin.
If you’re due for a transmission fluid change, follow Nissan’s recommended interval, which varies by model year and driving conditions; many owners plan fluid changes around 60,000 miles or per manual guidance.
What to do next
To get the precise fluid recommendation for your Altima, locate your vehicle’s owner’s manual or contact a Nissan dealership, providing your VIN to verify the exact transmission type and fluid specification.
Summary
Summary: The core rule is to use the Nissan-specified transmission fluid for your exact Altima’s transmission type. CVTs use NS-2 or NS-3 depending on the model year, and conventional automatics use the ATF specified in the manual. If you’re unsure, consult the owner’s manual or a dealer before topping off or changing fluid.