What Causes Excessive Engine Oil Consumption?

The issue of decreasing engine oil in a car is not like a reduction in other fluids. Oil serves as the lifeblood of the engine, and adhering to the recommended oil change schedule from the manufacturer is crucial to maintaining the engine’s performance and smooth operation without parts friction. However, at times, car owners may notice a rapid decrease in oil levels before the scheduled oil change.

Increased oil consumption in the car

There are many signs of increased oil consumption in the car and the reasons leading to this problem, and in the following lines we will highlight each of them in a simplified manner.

Signs of Increased Oil Consumption in the Engine

If you observe any of the following signs, take your car to a maintenance center:

Oil Leakage from the Exhaust

Damage to piston rings or cracks in the engine can lead to oil leakage and its exit from the exhaust pipe. Regularly inspecting the engine components for leaks is advised.

Decreased Engine Pressure

Engine pressure results from the proper combustion of fuel and air within cylinders or combustion chambers. When this pressure decreases, smoke may exit the exhaust, indicating increased oil consumption.

Smell of Burning Oil

If there’s an oil leak that doesn’t reach the exhaust but falls on engine parts and burns, the smell of burning oil will be noticeable inside the cabin.

Carbon Deposits Inside the Engine

Accumulation of carbon inside the engine is a clear sign of rapid oil burning and insufficient smooth flow between parts. Oil may accumulate on spark plugs and beneath engine valves.

Check Engine Light

Due to the critical nature of increased oil consumption, the Check Engine light on the dashboard may illuminate, or the oil indicator may frequently appear, alerting the driver to check the engine and oil.

Causes of Increased Oil Consumption in a Car

Now that we’ve looked at the indicators pointing to a specific problem leading to increased oil consumption, let’s explore the reasons behind this issue:

Use of Inappropriate Oil Type

Different oil types vary in viscosity and additives. Using an oil type that doesn’t align with the manufacturer’s specified ratios in the user manual can lead to faster oil burning.

Damage to Piston Rings

Piston rings regulate the entry of oil into the combustion chambers. When damaged, this system is disrupted, causing imbalances in burned oil quantities.

Damaged engine skins

Every engine has seals, also known as engine gaskets, that maintain tight connections between parts to prevent oil leaks. Over time, these seals wear out, leading to oil leaks and increased consumption.

Engine’s End-of-Life

An aging and heavily worn-out engine is more prone to oil-related issues. Internal components may experience corrosion and wear, resulting in the engine burning larger amounts of oil.

In conclusion, to avoid increased oil consumption in your car, it is recommended to follow your car’s oil change schedule, use the appropriate oil type, and regularly maintain the engine and its related components. This preventive approach will help you avoid major repair costs in the future and preserve your car’s engine for an extended period.

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