The engine is a most important part of the vehicle. It ensures the proper operation of the engine moving parts. It reduces the friction, wear, and tear between the moving parts. The engine oil also prevents the engine from overheating. With time, the engine oil diminishes and reduces its viscosity. This article mainly explains the symptoms and causes of low engine oil.
What Is Engine Oil?
Engine oil is a highly viscous liquid that lubricates and cools vehicle engines. All types of engines require a sufficient amount of oil, but the type and weight (thickness) of oil differ according to the type of the engine. It also depends on when the engine was built. Maximum latest engines use low viscosity oils than they did 8, 18, or 25 years ago.
The oil for your car engine is as much important as coolant important. The engine moving parts require a proper supply of oil for efficient working. It reduces the friction between the parts. As your engine doesn’t have sufficient oil, the engine’s metal parts make contact with each due to that they damage.
Types of Engine Oils
The engine oils have two types:
- Mineral oil: It is a petroleum product made from crude oil. It has low cost, but it has low service life than synthetic oil.
- Synthetic oil: It is made in the laboratory. There is also a blend that combines the two oils. These oils have high costs but reduce the need for natural resources and last longer.
What is the function of Engine Oil?
The main function of the engine oil is:
- It is a liquid lubricant. These oils make a thin layer between moving parts and prevent their full contact. The main function of the engine oil is to properly lubricate the engine parts and protect all moving parts from rubbing against each other. It decreases the friction between the moving parts.
- The engine oil increases the service life of the engine.
- It ensures the proper cooling of the engine moving parts. Most of the required cooling is provided by a cooling system (water pump, coolant, thermostat, radiator, etc.). However, engine oil provides additional cooling to the parts of the engine where the coolant is not accessible.
- It also helps to remove the contamination from the engine and ensures engine cleaning.
- It also helps to prevent the engine from overheating.
Signs of Low Engine Oil
As the engine oil goes down, your car produces one of the blow-given signs:
1) Oil Pressure Warning Light
The oil pressure warning light tells you that your vehicle has a low oil level. The oil pressure warning light is one of the most famous signs of low oil. This warning light is installed on your vehicle dashboard.
The oil pressure warning light is linked to a system that evaluates the oil level, and the symbol lights up when it detects that the oil level is too low. If you see this warning light on the car dashboard, add more oil to your car.
2) Burning Oil Smell
The burning oil smell inside the vehicle is another symptom of oil leakage. As you observe this sign, park your vehicle in a safe place and inspect the problem. After parking, wait for a few minutes and let the engine cool down.
As the engine is cooled, check the oil level. If your vehicle has a low oil level, do not start driving. This may severely damage the engine parts. In case of an oil leak, contact to your nearest mechanic.
3) Dark, Dirty Oil
The new oil doesn’t contain any contamination. The health oil usually has a light to dark gold color. With time, the oil color converts into the dark. That’s because of the heat and dirt and debris being sucked in as it’s being pumped through the engine. By inspecting the dipstick frequently, you can easily monitor the change in color of engine oil. The dark color of the oil shows you that now you should change your oil.
4) Knocking Noise
The main function of engine oil is to lubricate the engine parts properly. The proper lubrication of the moving parts reduces the noise and friction. If you run out of oil, the moving parts of the engine cannot get their desired amount of oil for lubrication.
Due to oil shortage, the metal parts make physical contact with each other, which can generate knocking noise. When the oil pressure is low, you may also hear a knocking noise.
This knocking noise may also generate when the oil lost its viscosity.