How can you save fuel?

Your selected options are correct because maintaining the right tyre pressure is essential for fuel efficiency. Under-inflated tyres increase rolling resistance, leading to higher fuel consumption. Additionally, removing roof racks or ski racks when they are not in use can significantly reduce aerodynamic drag, which also enhances fuel economy.

However, the third option regarding avoiding driving in top gear is incorrect. In fact, driving in the appropriate gear for your speed can improve fuel efficiency. It is important to match your driving style with the vehicle's capabilities and the road conditions. Understanding these factors can help you optimize fuel consumption while adhering to German driving regulations, which emphasize the importance of vehicle maintenance and efficient driving practices.