What results in increased fuel consumption of your car?

The combination of a roof rack or ski rack and transporting unnecessary objects both contribute to increased fuel consumption because they add extra weight and aerodynamic drag to your vehicle. This means your engine has to work harder, using more fuel.

In the context of German traffic regulations, it’s important to be mindful of how the load on your vehicle affects fuel efficiency and emissions. While excessive tire pressure would actually decrease rolling resistance and potentially improve fuel economy, it can also pose safety risks such as reduced grip. Therefore, when considering factors impacting fuel consumption, the focus should be on how additional weight and drag directly lead to higher fuel use.