Toyota ATF (WS) – 4L is a World Standard automatic transmission fluid specially formulated for Toyota and Lexus automatic gearboxes requiring the WS specification, designed to deliver consistently smooth and precise gear changes across a wide range of driving conditions. It provides excellent lubrication, thermal stability, and protection against wear, oxidation, and corrosion to help extend the life of your transmission. This genuine Toyota ATF meets the required OEM WS standards (such as Toyota ATF WS JWS-3324) and ensures optimal performance and fuel efficiency in compatible automatic transmissions.