What type of fuel is often highlighted at service exits for larger vehicles?

The correct answer is diesel because larger vehicles, such as trucks and buses, typically run on diesel fuel due to its efficiency and the power it provides for heavier loads. Diesel engines offer better fuel economy compared to gasoline engines, which makes them a preferred choice for commercial vehicles designed to carry substantial weight over long distances.

At service exits, diesel fuel is prominently featured to accommodate these larger vehicles, ensuring that drivers have easy access to the necessary fuel types for their engines. Unleaded fuel and gasoline are more common for standard passenger vehicles, while compressed natural gas, although it is becoming more popular for some types of vehicles, is less commonly highlighted in service areas specifically designed for larger trucks. This focus on diesel reflects the needs of the majority of heavy-duty vehicle operators who require specific fueling options during their travels.