Things drivers need to keep in mind.

The fuel injection and ignition systems are malfunctioning.

The fuel injection and ignition system, including spark plugs and fuel injectors, are two crucial components that ensure efficient fuel combustion in the engine. However, after a period of use, spark plugs often become covered in carbon deposits, reducing their ignition effectiveness.

This results in incomplete combustion of the fuel mixture, causing a reduction in engine power. Consequently, the system has to compensate by injecting more fuel, leading to abnormally high fuel consumption.

Clogged fuel injectors can lead to abnormally high fuel consumption.

Similarly, when fuel injectors are clogged, fuel is not evenly distributed into the combustion chamber, reducing combustion efficiency. To maintain power, the system has to increase the amount of fuel, leading to higher fuel consumption.

Dirty engine air filter

The air filter's job is to clean the air before it enters the combustion chamber. However, over time, if not cleaned regularly, the air filter will become clogged with dust and dirt, obstructing the airflow into the engine. This forces the system to inject more fuel to maintain power, causing the vehicle to consume more fuel.

A dirty air filter causes a car to consume more fuel.

According to manufacturers, engine air filters should be cleaned every 5,000 km and replaced every 20,000 km. For vehicles operating in dusty environments, the air filter should be cleaned every 3,000-4,000 km and replaced every 15,000 km.

Tires are underinflated or worn out.

Worn tires or low tire pressure are among the reasons why cars consume more fuel. When tire pressure is below the standard level, the friction area between the wheel and the road surface increases, creating greater resistance. This forces the engine to work harder, leading to higher fuel consumption.

Drivers should regularly check and ensure that tire pressure is always at the correct level; this information is usually clearly stated by the manufacturer on a sticker on the car door. If the tires are excessively worn, they should be replaced or rotated to ensure safety and fuel efficiency.

Insufficient tire pressure not only causes tires to wear out faster but also leads to higher fuel consumption.

Not changing engine oil regularly.

Engine oil plays a crucial role in lubricating the internal parts of the engine. After a period of use, the oil gradually loses its lubricating ability, increasing friction between parts, causing the engine to overheat and consume more fuel. Furthermore, not changing the oil with the correct type or at the right time can negatively impact engine performance and lifespan.

Therefore, drivers need to check the oil level using the dipstick and adhere to the regular oil change schedule. Choosing the correct type of oil as recommended by the manufacturer is also crucial to ensuring smooth vehicle operation.

Source: https://www.congluan.vn/o-to-ngon-nhien-lieu-bat-thuong-nhung-dieu-tai-xe-can-luu-y-post315062.html