Toyota ATF WS Automatic Transmission Fluid 4‑Quart Pack — Genuine Lexus/Toyota OEM, Smooth Shifts & Temperature‑Stable

Toyota 00289-ATFWS is a factory-formulated Automatic Transmission Fluid (ATF) meeting Lexus and Toyota World Standard WS specifications, supplied here as a convenient 4-quart pack.

This genuine Toyota/Lexus ATF WS is engineered to the exacting standards of the manufacturer's transmission requirements. It’s the specific fluid recommended for many modern Toyota and Lexus automatic transmissions that call for the WS specification, formulated to support smooth shifts, protect internal parts, and maintain consistent performance across temperature ranges when used as directed.

Which vehicles require Toyota ATF WS and why does that matter?

Many newer Toyota and Lexus models specify ATF WS because its friction characteristics match the design of these transmissions. Using the correct WS fluid helps preserve factory shift feel and prolongs service intervals compared with non-specified fluids.

• Designed for transmissions listing ATF WS in the owner’s manual
• Typical fit: recent Toyota and Lexus automatic transmissions
• Maintains OEM shift quality and calibrated friction performance

How should I use this 4-pack for service and maintenance?

The product comes as four 1-quart bottles, which makes it simple to perform drain-and-fill services or top off fluid during scheduled maintenance. Always follow the vehicle manufacturer’s procedure for fluid capacity, fill level checks, and change intervals to ensure correct results.

• Each bottle is 1 QT for easy handling and measured fills
• Use with recommended procedures in the owner’s manual
• Keep a spare bottle for quick top-offs if needed between services

What are the practical benefits of using genuine Toyota/Lexus ATF WS?

OEM ATF WS is formulated to meet the precise friction, viscosity, and additive profile required by Toyota and Lexus transmissions. While it won’t eliminate wear entirely, it reduces the risk of drivability issues that can arise from incorrect fluid and supports consistent operation over a wide temperature range.

• Factory-approved formulation for predictable shift performance
• Helps protect clutch packs and valve bodies with proper additives
• Optimized viscosity for cold starts and hot operating conditions

Can I mix ATF WS with other fluids or aftermarket ATFs?

Mixing different ATFs can change friction characteristics and may affect shift quality or protection; for best results, use ATF WS exclusively when your vehicle requires it. If a complete drain and refill is not possible, consult a technician or your dealer for guidance on service options.

• Avoid mixing WS with non-WS or incompatible ATFs
• Perform full fluid change when practical to maintain OEM properties
• Check your owner’s manual or a dealer for approved alternatives

Who is this for: This four-pack of Toyota 00289-ATFWS is intended for owners, independent technicians, and fleet managers working on Toyota and Lexus vehicles that specify ATF WS. It’s especially useful for DIYers who prefer keeping genuine OEM fluids on hand, service shops performing multiple jobs, and anyone who wants the correct factory fluid in the precise quantity needed for drains, top-offs, and scheduled maintenance. Always verify the ATF WS specification in the vehicle’s service literature before use.