Toyota Genuine ATF WS (World Standard) is an original equipment manufacturer (OEM) automatic transmission fluid developed for compatible Toyota automatic transmissions that specifically require the WS specification.

Its advanced formulation is designed to deliver smooth, consistent shifting, effective lubrication, and reliable wear protection. The fluid's carefully balanced friction characteristics support transmission performance, while its thermal stability helps maintain protection across a range of operating temperatures.

Toyota ATF WS is designed for compatible electronically controlled automatic transmissions, including certain sealed transmission systems. It may also be required for specific Toyota and Lexus hybrid transmission applications, depending on the model and transmission design.