2002, Toyota releases the Genuine ATF WS (World Standard) Fluid Specification (JWS3324 or NWS9638). This fluid is not backward compatible with previous Toyota fluids or Dexron fluids. Almost all 2004 and above Toyota vehicles with automatic transmissions use the WS fluid specification. this fluid absorbs moisture and should never be reused. Always use fluid from an unopened container. See Toyota bulletin T-SB-003-11.TOYOTA GENUINE WS AT FLUID
Genuine Toyota ATF – WS is Toyota’s “World Standard” automatic transmission fluid.
Specifically formulated for use in Toyota sealed automatic transmissions.
This fluid was first used in the following transmissions
TOYOTA GENUINE WS AT FLUID
2004 Toyota P112 Hybrid Transaxle
2006 AB60E 6-speed transmission
2006 U660E 6-speed transaxle
2007 AA80E 8-speed automatic (World’s first 8-speed light duty transmission)8
2017 AGA0E 10-Speed Transmission
2011 – CVT Fluid TC
Original Toyota ATF WS 4L