What should a driver do to ensure better fuel efficiency from their vehicle?

Regularly servicing the vehicle is crucial for maintaining optimal fuel efficiency. When a car is well-maintained, it runs more smoothly, which can lead to better fuel consumption. Regular services typically include checking and replacing air filters, oil changes, and ensuring that all parts of the engine are functioning correctly. A well-tuned engine operates more efficiently, reducing wasted fuel. Additionally, maintaining proper tire pressure, which is often checked during servicing, contributes significantly to improved fuel efficiency.

Other options do not support fuel efficiency as effectively. For instance, filling the tank to maximum capacity does not inherently increase fuel efficiency but may only extend the distance you can travel before needing to refuel. Driving at higher speeds consistently can actually decrease fuel efficiency, as vehicles typically consume more fuel at increased speeds due to aerodynamic drag and the engine working harder. Similarly, using air conditioning frequently can lead to increased fuel consumption, as it places additional load on the engine.