What kind of transmission fluid does a Lexus GX470 take?
The Lexus GX470 uses Toyota ATF Type T-IV automatic transmission fluid.
The GX470, produced from 2003 to 2009, relies on a five‑speed automatic transmission that requires a specific fluid spec for optimal shifting and longevity. While some markets or older vehicles have tolerated other ATFs, the official guidance for the GX470 is to use Toyota/Lexus ATF Type T‑IV or an OEM-equivalent that meets that standard. Following the correct specification helps maintain smooth shifts and protects the transmission over time.
Official fluid specification
The GX470’s service manual designates Toyota Type T‑IV Automatic Transmission Fluid (ATF) as the correct fluid. This specification is formulated for the A750E‑based transmissions used in the GX470. Always verify the fluid type on the bottle or with a dealer, and avoid mixing ATFs that do not meet the T‑IV standard.
Maintenance and compatibility notes
When servicing the transmission, use fresh Type T‑IV ATF. Follow the vehicle’s maintenance schedule for drain-and-fill or more extensive transmission flushing, depending on service history and conditions. Do not mix ATF types, and if you are unsure about the exact spec available in your region, consult a Lexus dealer or a qualified technician for the correct OEM-equivalent fluid that meets the Type T‑IV standard.
Summary
The GX470 requires Toyota/Lexus ATF Type T‑IV fluid for its automatic transmission. Use an OEM or OEM-equivalent fluid that meets the T‑IV specification, follow the recommended service procedures, and avoid mixing ATF types. When in doubt, verify with a Lexus dealer to ensure you’re using the correct fluid for your specific model year and regional requirements.
