A certain amount of oil consumption or reduction in engines is actually normal. However, when consumption exceeds expected limits, it can offer important clues about engine health.
🔹 What’s considered normal?
Manufacturers typically define oil loss of 0.3–0.5 liters per 1,000 km as “acceptable.” This value may vary depending on engine age, oil viscosity, and driving conditions.
🔹 Natural causes of oil reduction:
- High-rev driving
- Operating under heavy load
- Sustained high-speed driving
- Use in high temperatures
In such cases, increased oil consumption is usually not a fault but a natural result of operating conditions.
🔹 Signs that may indicate a fault:
- Consumption exceeding 1 liter per 1,000 km
- Blue smoke from the exhaust
- Heavy contamination around the oil filler cap
- Oil pressure warning light turning on
These symptoms may point to worn piston rings, cylinder wall issues, turbo failure, or seal leakage.
🔹 What should be done?
To understand oil consumption, regularly check the level with the dipstick and record usage. If consumption exceeds normal limits, the engine should undergo detailed inspection.
📌 Conclusion:
Not every oil reduction is a fault. But exceeding the manufacturer’s expected limits may signal a more serious issue.
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