DW-1 fluid is Nissan and Infiniti's official automatic transmission fluid specification, commonly used in Nissan CVTs (especially those built by JATCO) and in various traditional automatics. It is not interchangeable with standard Dexron or Mercon fluids. Using the correct specification helps maintain smooth shifting and transmission health.
Definition and typical use
DW-1 is a designation for a transmission fluid that meets Nissan’s performance requirements for many of its transmissions, with a particular emphasis on CVTs produced by JATCO. The specification covers viscosity, friction characteristics, and additive packages tuned for Nissan/Infiniti transmission control systems. If your vehicle’s manual calls for DW-1, you should use DW-1 or an OEM-approved equivalent to ensure proper operation.
Who relies on DW-1
DW-1 is most commonly specified for Nissan and Infiniti vehicles, especially those equipped with CVTs from JATCO. Some third‑party fluids are marketed as DW-1 compliant, but you should verify that they meet Nissan’s exact specification on the product label or data sheet.
How it differs from other ATF specs
DW-1 is not the same as Dexron or Mercon fluids. Dexron VI, Mercon V, and similar conventional ATFs have different friction characteristics and additive packages, which can affect shift quality or belt-clamp behavior in CVTs if used when DW-1 is required. Some models may also require other Nissan CVT fluids such as NS-2 or NS-3; always follow the exact specification listed in the owner's manual.
Maintenance and service guidance
For owners maintaining a Nissan/Infiniti transmission that specifies DW-1, careful adherence to service guidelines is essential. Here are key points to consider:
- Follow the vehicle’s factory-recommended service intervals for transmission or CVT fluid changes, which can vary by model and driving conditions.
- Use DW-1 or an equivalent fluid that is explicitly approved by Nissan for DW-1 applications.
- Be attentive to signs of the wrong fluid, such as rough shifting, slipping, unusual noises, or harsh engagement, and have the transmission inspected promptly.
- Ensure proper filling and capacity during a change; CVTs and traditional automatics have specific refill amounts that should be observed.
In practice, sticking to the manual’s specification and having a qualified technician perform fluid changes is the best way to safeguard CVT performance and longevity.
Compatibility, substitutions, and what to know
Understanding compatibility helps avoid costly mistakes. Here is how to navigate substitutions and specs:
- Use DW-1 or an OEM-approved equivalent when the manual requires DW-1.
- Avoid substituting with Dexron VI or Mercon unless the manual explicitly allows it for your particular model.
- Some Nissan CVTs require a dedicated CVT fluid such as NS-2 or NS-3; if so, use those specifications rather than DW-1.
- Look closely at product labels to confirm the fluid meets the exact Nissan specification; some “DW-1” products may not be fully compliant.
- When in doubt, consult a Nissan dealer or a qualified technician to confirm the correct specification for your vehicle.
Compatibility depends on the exact model and year. Always verify the specified fluid on the owner’s manual or under-hood tag before purchasing or topping off.
Where to buy and what to expect on price
DW-1 fluids and compatible products are widely available, with several purchasing options and price ranges to consider. Here are common avenues:
- Nissan/Infiniti dealership service departments that stock DW-1 or OEM equivalents.
- Authorized auto parts retailers and major chains that carry DW-1 or Nissan-approved CVT fluids.
- Online retailers and automotive fluid manufacturers offering DW-1-compliant products with delivery options.
Prices typically vary by brand, synthetic content, and bottle size, but you can expect a range that reflects the CVT-specific nature of the fluid. Always check the product specifications to confirm compatibility with DW-1 as required for your vehicle.
Summary
DW-1 is Nissan and Infiniti’s official ATF specification, with particular emphasis on CVTs built by JATCO. It is not interchangeable with standard Dexron or Mercon fluids unless the vehicle manual explicitly allows it. Always follow the exact specification listed in the owner's manual, use DW-1 or an approved equivalent, and rely on qualified technicians for CVT fluid changes to preserve shifting performance and transmission life. Keeping to the prescribed fluid helps maintain warranty eligibility and driving reliability.