Toyota

Toyota’s Genuine ATF WS specification came out in 2002. You’ll also see it referenced as JWS3324 or NWS9638 in technical documentation. JWS3324 or NWS9638 are essentially the same so don’t get confused when […]

Toyota’s T-IV automatic transmission fluid is a specific formulation designed for Aisin-Warner transmissions found in Toyota, Lexus, and several other manufacturers’ vehicles. The T-IV specification, formally known as JWS 3309, has unique viscosity