Why Is My Car Consuming So Much Fuel?

Fuel consumption is one of the biggest concerns for car owners, especially with rising petrol prices in Malaysia. If you notice that your car is using more fuel than usual, it’s a sign that something might be wrong. Identifying the cause early can help you save money and avoid bigger repairs later on.

Common Reasons for High Fuel Consumption

1. Poor Driving Habits

   • Sudden acceleration, frequent braking, and driving at high speeds can burn more fuel. Smooth and steady driving is more fuel-efficient.

     
     

2. Under-Inflated Tyres

   • Low tyre pressure increases rolling resistance, forcing your engine to work harder. This directly causes your car to use more petrol.

     

3. Dirty Air Filter

   • A clogged air filter restricts airflow into the engine, making it burn more fuel to compensate.

     
     

4. Old Spark Plugs

   • Worn-out spark plugs affect combustion efficiency, causing incomplete fuel burning. This means your car wastes fuel instead of fully using it.

     

5. Excess Weight and Overloading

   • Carrying unnecessary items in your boot or roof rack increases fuel usage. The heavier your car, the harder the engine works.

     
     

6. Engine or Sensor Problems

   • Issues like a faulty oxygen sensor, fuel injector problems, or engine misfires can lead to abnormal fuel consumption.

     

7. Air-Conditioning Overuse

   • In Malaysia’s hot weather, we often rely heavily on the air-cond, but constant use increases the load on the engine, which results in higher petrol usage.

What You Can Do

• Drive smoothly and avoid aggressive acceleration.

• Check and maintain proper tyre pressure regularly.

• Replace air filters and spark plugs when needed.

• Avoid carrying unnecessary weight in your car.

• Get your car serviced on time to detect faulty sensors or engine issues early.

Conclusion

High fuel consumption doesn’t just hurt your wallet—it can also indicate potential issues with your car. By practicing good driving habits and keeping up with regular maintenance, you can reduce fuel usage and keep your car running efficiently.

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