Vehicles using 1UZ-FE engine list:
- LEXUS - LS 400 (180kW) 1990–1994
- LEXUS - LS 400 (194kW) 1995–1997
- LEXUS - GS 400 (216kW) 1997–2000
- LEXUS - LS 400 (209kW) 1997–2000
Recommended oil for engine 1UZ-FE engine.
Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
Oil specification key
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.
Answer generated by AI.
Oil specifications for 1UZ-FE engine
SAE 5W-30
API SJ
Most common problems, symptoms & fixes for the 1UZ-FE engine.
Engine 1UZ-FE is known for durability but can face issues like oil leaks (valve cover gaskets), timing belt wear, and coolant leaks from the water pump. Diagnose leaks by inspecting gasket areas and coolant levels regularly. Prevent problems with timely oil changes using quality synthetic oil and replacing the timing belt every 90,000 miles or 6 years. Address overheating promptly to avoid head gasket damage. If rough idling or misfires occur, check ignition coils and spark plugs. Regular maintenance and early detection of leaks or belt wear ensure long engine life and reliable performance in Lexus LS 400 and GS 400 models.