How can longer routes with more highway miles impact fuel economy?

Longer routes with more highway miles can often lead to better fuel economy due to several factors that favor consistent driving conditions typically found on highways. On highways, vehicles tend to maintain a more constant speed with fewer stops and starts compared to city driving, which can lead to increased fuel efficiency.

When a truck is on the highway, it has the opportunity to reach its optimal cruising speed. This steady-state operation minimizes fuel consumption per mile traveled, in contrast to frequent traffic lights, congestion, and stop-and-go movements common in urban areas that can lead to increased fuel usage due to acceleration and deceleration.

Moreover, highway driving usually involves less load on the engine compared to driving in varied terrain or situations that require frequent changes in speed, which can strain the engine and reduce efficiency. Keeping a steady speed on the highway allows for smoother engine operation and can optimize fuel consumption, leading to better overall fuel economy for longer routes with more highway miles.