1991 Lexus LS400 Engine Specs
Engine Configuration
The 1991 Lexus LS400 is equipped with a powerful and reliable engine that delivers impressive performance. Let’s take a closer look at its engine configuration:
| Engine Type | 4.0-liter V8 |
|---|---|
| Displacement | 3969 cc |
| Valvetrain | DOHC |
| Horsepower | 250 hp |
| Torque | 260 lb-ft |
| Compression Ratio | 10.0:1 |
The 1991 Lexus LS400’s engine configuration showcases a 4.0-liter V8 engine, which provides ample power and smooth operation. With a displacement of 3969 cc, this engine is capable of delivering a remarkable driving experience. The dual overhead camshaft (DOHC) design ensures precise control over valve timing, enhancing both power and efficiency.
The engine generates an impressive output of 250 horsepower, allowing the LS400 to accelerate with ease and grace. Additionally, it produces a torque of 260 lb-ft, ensuring strong low-end performance and effortless highway cruising. The compression ratio of 10.0:1 further contributes to the engine’s efficiency and power delivery.
Engine Oil Specs & Service Intervals
Proper engine maintenance is crucial to ensure the longevity and optimal performance of your 1991 Lexus LS400. Here are the engine oil specifications and recommended service intervals for this model:
| Engine Oil Type | 5W-30 |
|---|---|
| Oil Capacity (including filter) | 6.9 quarts |
| Recommended Oil Brand | High-quality synthetic or conventional oil meeting API standards |
| Oil Change Interval | Every 5,000 miles or 6 months (whichever comes first) |
| Oil Filter | Replace with every oil change |
To maintain optimal engine performance, it is recommended to use 5W-30 engine oil in your 1991 Lexus LS400. This viscosity grade ensures proper lubrication across a wide range of temperatures, promoting smooth operation and protection against wear.
When performing an oil change, it is important to replace the oil filter as well. This helps remove contaminants and ensures clean oil circulates through the engine. High-quality synthetic or conventional oil meeting API standards is the preferred choice for the LS400’s engine.
To keep your engine running smoothly, it is advised to change the engine oil every 5,000 miles or 6 months, whichever comes first. Regular oil changes help maintain proper lubrication, prevent engine sludge buildup, and extend the life of your engine.
In conclusion, the 1991 Lexus LS400 boasts an impressive engine configuration with its 4.0-liter V8, delivering a blend of power, efficiency, and reliability. By adhering to the recommended engine oil specifications and service intervals, you can ensure that your LS400 continues to perform at its best for years to come.
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