2026-09-15
Lexus RX 270/350/450h – No Timing Belt (Timing Chain Only)
All RX variants use a timing chain — no belt replacement needed, ever. The 2GR-FE/2GR-FXE (V6) and 2AR-FE (4-cyl) engines have oil-lubricated chains designed for lifetime service. This eliminates the timing belt service typical of other SUV brands. Oil changes with 5W-30 every 10,000 km are the critical maintenance to protect chain life.
RX: Timing Belt or Chain?
No timing belt on the Lexus RX. All RX engines — 2GR-FE, 2GR-FKS, and 2GR-FXE — use dual timing chains. Chains are designed for engine life. No scheduled replacement needed. Change 0W-20 full synthetic every 10,000 km to keep chains healthy.