Toyota World Standard Autom ATF 00289-ATFWS — Genuine automatic transmission fluid, smooth shifting & clutch protection

Toyota World Standard Autom (00289-ATFWS) is a genuine automatic transmission fluid formulated to meet Toyota factory specifications for smooth shifting and reliable gear protection.

Designed and supplied by Toyota for vehicles that require the World Standard Autom ATF specification, this fluid supports consistent hydraulic performance and helps preserve transmission components under a wide range of temperatures. It is intended for use where the 00289-ATFWS part number is specified in the owner’s manual or service documentation. Using the correct fluid supports the torque converter, valve body, and clutch packs by maintaining designed friction characteristics and fluid film strength.

Which vehicles and systems require this Toyota ATF?

If your Toyota (or other manufacturer vehicle) service manual lists 00289-ATFWS or a compatible World Standard Autom ATF, this product is the specified replacement fluid. It is commonly used in automatic transmissions and some transfer cases or hydraulic systems that call for Toyota’s World Standard formulation. Always cross-check the part number with your vehicle’s maintenance guide before purchase.

• Specified in Toyota service documents as 00289-ATFWS
• Used in automatic transmissions that require World Standard Autom ATF
• Can be listed for select transfer cases or hydraulic applications
• Check vehicle manual or dealer for compatibility

How does this ATF affect shifting and transmission longevity?

This formula helps preserve the designed friction behavior necessary for predictable gear changes and torque converter lockup. By maintaining viscosity and additive balance, it reduces wear on clutch plates and hydraulic components, supporting consistent operation over time. Proper fluid choice can minimize slippage and abnormal shift quality that occur when using incorrect fluids.

• Maintains friction characteristics for smooth shifts
• Helps protect clutches and seals from premature wear
• Supports consistent hydraulic pressure and torque converter performance

What are the practical considerations when changing to or topping up this fluid?

When performing a service, follow the vehicle manufacturer’s fill volumes, procedures, and torque specifications for drain/fill points. Use clean funnels and follow proper disposal protocols for old fluid. If mixing fluids, be cautious—mixing non-compatible ATFs may change friction and corrosion protection characteristics.

• Follow Toyota fill volumes and service steps exactly
• Keep the work area and tools clean to avoid contamination
• Avoid mixing with incompatible aftermarket ATFs unless manufacturer permits
• Dispose of used fluid at an approved recycling center

How should I store and handle the Toyota 00289-ATFWS?

Store sealed containers in a cool, dry place away from direct sunlight and extreme temperatures. Keep caps tight to prevent moisture and dirt ingress, which can degrade additive packages. For shops, rotate inventory by date to use older stock first and reduce waste.

• Store upright in original sealed containers
• Protect from heat and freezing conditions
• Keep away from sources of ignition and open flames
• Use within recommended shelf life indicated by supplier

Who is this for: Technicians, fleet managers, and owners of Toyota vehicles (and compatible models) who need the exact factory-specified World Standard Autom ATF (part 00289-ATFWS) for maintenance or repairs. Ideal when precision and adherence to Toyota service recommendations matter—especially during transmission service, rebuilds, or when topping off fluid to preserve intended shift quality and component protection.