What kind of oil does a Lexus LS 400 take?
The Lexus LS 400 typically uses SAE 5W-30 engine oil, about 6 quarts including a filter; in very hot climates, 10W-30 can be used if 5W-30 isn’t available. Always verify with the owner's manual or a Lexus technician for your exact year and market.
Recommended oil grade and specifications
Choosing the right oil depends on climate, model year, and maintenance history. For most LS 400 models powered by the 1UZ-FE, 5W-30 is the standard grade. 10W-30 is an acceptable alternative in hot climates or if 5W-30 isn’t available. The oil should meet the appropriate API service category for your vehicle’s year and region; many owners also choose synthetic or synthetic-blend oils for added protection.
Variations by climate and model year
While 5W-30 is the baseline, certain conditions or regional requirements may favor a higher viscosity option. If you operate the car in extreme heat or carry heavy loads, consult your manual or a Lexus service professional to confirm the best choice for your specific vehicle and environment.
Informative list: common oil grade options you may encounter
- 5W-30, conventional or synthetic; API SJ/SL/SM (or higher) compatible with most LS 400 engines.
- 10W-30, conventional or synthetic; acceptable in hot climates or when 5W-30 is not readily available; ensure it meets the same API specification.
Concluding: For everyday driving in typical climates, 5W-30 is the recommended default. 10W-30 serves as a backup option in high-heat situations or when 5W-30 isn’t accessible.
Oil capacity and change intervals
Understanding capacity and maintenance intervals helps ensure the engine stays properly lubricated over time. The LS 400’s 1UZ-FE engine generally requires about 6 quarts (roughly 5.7 liters) of oil with a new filter.
Informative list: typical oil change intervals by oil type
- Conventional oil: change roughly every 3,000–5,000 miles (4,800–8,000 km) depending on driving conditions and manufacturer guidance.
- Synthetic or synthetic-blend oil: change roughly every 5,000–7,500 miles (8,000–12,000 km), again influenced by climate, driving style, and local recommendations.
Concluding: If you’re unsure, follow the maintenance schedule in the owner’s manual and adjust for severe service (short trips, extreme temperatures, towing) as needed.
Practical maintenance tips
To keep your LS 400 running smoothly, pair the right oil with a fresh filter and a reliable oil change routine. Always use the oil viscosity and specifications recommended for your vehicle’s year and market, and verify the oil level after changes with the dipstick.
Summary
The Lexus LS 400 typically requires 5W-30 engine oil, with about 6 quarts needed for a full change. 10W-30 can be used in hot climates or when 5W-30 isn’t available. Oil capacity and service intervals vary slightly by model year and operating conditions, so consult the owner’s manual or a Lexus service advisor for precise guidance. Using a quality oil that meets the appropriate API specifications and performing regular oil changes will help protect the 1UZ-FE engine over the long term.
