What are the reasons for a car to deliver poor mileage?A car can return poor fuel mileage due to the following reasons.

• Poor maintenance of the vehicle
  
• Inefficient driving behaviour (Driving too aggressively)
  
• Technical problem (Issue with engine components or fuel line)
  

How does the engine capacity of a car affect fuel economy?The fuel economy of a car depends on the engine capacity of a vehicle. In simple words, the higher the capacity of the engine, the more the fuel consumption. For example, a small hatchback is a fuel efficient car because it has a small engine. An SUV with a bigger engine consumes more fuel.
What is the role of engine oil in improving fuel mileage?Engine oil lubricates the internal components and ensures that the engine runs at an optimum temperature. An old and sludgy motor oil loses its capability to lubricate the engine components, and the temperature will increase due to the friction, and the engine does not run efficiently. An inefficient engine consumes more fuel.
Will closing the windows of my car help in improving fuel efficiency?Yes. By closing the windows of your car, you can enhance the fuel mileage. Because when the windows are closed, the air around your vehicle passes efficiently, and it improves the overall aerodynamics. With less wind resistance, the engine also runs efficiently, and it improves fuel efficiency.

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