2026-09-15
Lexus RX 350 6AT ATF Service & RX 450h eCVT Fluid Malaysia
RX 350: 6AT (Toyota WS ATF), drain/fill 3.7L every 20,000 km. RX AWD models also need front diff fluid (0.8L Toyota FM gear oil) every 20,000 km. RX 450h: eCVT Toyota CVTF WS, change every 20,000 km. Cost at independent specialist: RX 350 drain/fill; AWD including diff fluids.
Lexus RX Gearbox / Transmission Service
- RX 270/350 (2GR-FE/2GR-FKS): 6-speed automatic (A760E/U660E) — Toyota WS ATF; 20,000 km change recommended
- RX 450h: eCVT front + rear electric motor (E-Four) — no ATF change for eCVT; inverter coolant separate circuit requires change at 160,000 km
- RX transmission shudder: low-speed torque converter shudder is common on neglected RX 350 — ATF change usually resolves it
- Transfer case fluid (RX AWD): if RX has all-wheel drive transfer case, change transfer case fluid at 20,000 km — often missed