What kind of transmission fluid does a Toyota Tacoma take?
In short, most modern Tacomas with automatic transmissions use Toyota ATF WS (World Standard). Older Tacomas typically require Toyota ATF T-IV, and manual transmissions use Toyota MTF with GL-4 specifications. Always verify with your vehicle’s owner manual or the transmission code plate on the transmission itself.
The Toyota Tacoma has spanned multiple generations with different transmissions. Because the exact fluid specification depends on the transmission type and year, this article breaks down typical recommendations and how to confirm the correct fluid for your truck.
Automatic transmissions
Before you drain and refill, know that the fluid spec can vary by year and by the exact automatic transmission model installed in your Tacoma. The most reliable approach is to check the owner's manual or the transmission identification tag.
- First-generation Tacomas (roughly 1995–2004) with automatic transmission: Toyota ATF T-IV is commonly specified, but always confirm with the manual or VIN-based guidance.
- Second-generation Tacomas (roughly 2005–2015) with automatic transmission: Toyota ATF WS is typically used, per Toyota recommendation for newer automatics; verify with your manual or dealership if unsure.
- Third-generation Tacomas (2016–present) with automatic transmission: Toyota ATF WS is the standard recommendation for modern automatics; always double-check the manual for any model-specific notes.
Across generations, the trend has moved toward ATF WS for newer automatics, with older units commonly using T-IV. If you’re unsure, consult the manual or have a dealership pull the exact specification for your VIN.
Manual transmissions
For manual-equipped Tacomas, the fluid choice is more standardized, but you still should verify the exact spec from the manual or transmission tag.
- All generations that use a manual transmission (e.g., R150F-based gearboxes) typically require Toyota Manual Transmission Fluid (MTF) meeting GL-4 specifications, commonly in viscosities such as 75W-85 or 75W-90 depending on the model and climate. Always use the Toyota-specified MTF or a proven equivalent that meets GL-4.
In practice, Toyota’s manuals and service sheets emphasize using Toyota MTF GL-4 with the appropriate viscosity for your climate and driving conditions. Avoid Dexron/Mercon fluids in manuals unless explicitly approved by Toyota for your specific gearbox.
How to confirm the right fluid for your Tacoma
Rely on the official sources and parts references to avoid misfueling or compatibility issues.
- Check the owner's manual for the exact ATF or MTF specification listed for your model year and transmission code.
- Look for a transmission code tag or plate under the hood or on the transmission itself; this code often points to the exact fluid spec Toyota recommends for your unit.
- When in doubt, contact a Toyota dealership or a qualified automotive technician with your VIN to confirm the correct fluid specification.
Knowing the correct specification saves wear on gears and ensures smooth shifting, especially in hot weather or heavy-duty use.
Summary
For most modern Tacomas with automatic transmissions, ATF WS is the recommended fluid, with T-IV used on older units. Manual transmissions usually require MTF GL-4. Always verify with the owner’s manual or transmission code plate for your exact year and gearbox to ensure you select the proper fluid.
