Why Is My Oil Light On? How to Fix

The smooth movement of oil among the engine parts is the main factor that refreshes its rotation process. When the oil pressure in the car drops, these parts and components will start to rub against each other, putting a significant load on some, as they are inherently sensitive. Consequently, this may result in a decrease in engine torque or, in worst cases, complete engine failure or damage to one of its components.

A driver can discern this by observing the oil lamp on the dashboard or noticing a decrease in the oil level in the tank. However, generally, the oil lamp on the dashboard is a crucial indicator, just like the engine lamp in the car and the ABS signal on the dashboard.

Oil Lamp on the Dashboard

In the following article, we will explore the reasons for the oil lamp illumination on the dashboard and some common situations that most drivers face regarding this matter.

What Does the Appearance of the Oil Light in the Car Mean?

Engine Oil Deficiency

The engine requires specific oil ratios with a defined viscosity to move smoothly between its parts. Monitoring the oil level in its container every two weeks is recommended.

Engine Parts Wear

When the passages and narrow pipes through which the oil flows expand after a long period of engine use, this oil will begin to flow between the parts in large quantities, reducing the necessary pressure to reach all the parts, especially at increased car speeds. At that point, the oil lamp on the dashboard will illuminate.

Oil Sensor Malfunction

Also known as the oil gauge, the oil sensor may malfunction and provide readings indicating a decrease in the oil level. Sometimes, these readings can be incorrect, leading to the illumination of the oil lamp on the dashboard. Checking the engine oil level is essential, and if it’s sufficient, it indicates a faulty oil sensor that needs replacement.

Inappropriate Oil Viscosity

The right oil has a precise viscosity that facilitates its movement within the engine. If the viscosity is too high or too low, it will disturb the pressure inside the engine, and sensors will send signals of oil deficiency, causing the oil lamp on the dashboard to light up.

Oil Pump Failure

The pump pushes oil into the engine, generating sufficient pressure to maintain the oil’s stability within the passages and pipes. If this component malfunctions, it will impede the oil’s movement, leading to the illumination of the oil lamp on the dashboard.

Oil Filter Blockage

The oil filter, also known as the engine oil filter, purifies the oil heading to the engine from dirt and impurities. If it becomes significantly blocked, oil will not flow easily, resulting in the oil lamp on the dashboard lighting up due to the engine not receiving the required oil.

Common Questions

Oil Lamp Turning On and Off

If you notice that the oil lamp turns on and off, or if it stays lit for a long time and then stops or flickers, this could indicate several issues, such as:

  1. Oil Sensor Needs Replacement:
    The oil sensor may need to be replaced.
  2. Electrical Contact or Wiring Issue
    There may be an electrical contact between the wires of the oil sensor or a fault in the connections.
  3. Accumulation of Dirt in Oil Passages
    Dirt accumulation inside the oil passages in the engine can impede its movement.

Oil Lamp Operates with Fluctuations When Pressing the Gas Pedal

While driving at low speeds, the engine’s RPM (Revolutions Per Minute) is low. You may notice that the oil lamp is illuminated. However, when increasing the engine speed and RPM, the oil lamp disappears from the dashboard. This is a clear indication that the oil’s quality is not suitable, and it has lost its appropriate viscosity, making it difficult for it to move smoothly.

Oil Lamp Illuminates When Applying Brakes

If the oil lamp lights up on the dashboard when pressing the brake pedal, this is a sign of a malfunction in the oil pump. It could also indicate that the quality of the oil used is low, or its expected lifespan has ended, necessitating a change.

In conclusion, it is essential for all car owners to check the engine oil after covering a distance of 5,000 km. This number may vary depending on the type and quality of the oil used, as well as the condition of the engine and the car in general. As always, we remind you to visit maintenance centers for periodic inspections of the car and ensure its safety from time to time.

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