2026-09-15
Lexus LS 460/500h Timing Chain – No Belt Required
LS 460 (1UR-FSE) and LS 500h (V35A-FTS) both use oil-lubricated timing chains — no timing belt ever. Regular 0W-20 oil changes are the only requirement. No timing belt cost throughout LS ownership. Chain stretch is negligible with proper oil maintenance.
LS Timing Chain
The LS 460 1UR-FSE 4.6L V8 and LS 500h 3.5L V6 both use timing chains. The 1UR-FSE D-4S system uses chains; carbon buildup on intake valves is possible but the chains themselves are robust. Change 0W-20 every 10,000 km — the VVT system on this V8 has multiple actuators that need clean oil. Air suspension components may need attention before the timing chains on most LS examples.