How does weight impact fuel consumption while towing?

When towing heavier loads, the vehicle requires more power to move, which directly influences fuel consumption. This is because the engine has to work harder to overcome the added weight of the trailer and its cargo. As a result, the additional strain on the engine leads to increased fuel usage. Factors such as terrain, driving habits, and vehicle type can also play a role, but the fundamental relationship is clear: the more weight being towed, the more fuel needed to maintain speed and power. This principle is critical for anyone preparing for a heavy trailer endorsement, as understanding how weight affects fuel consumption can help in planning trips and budgeting for fuel costs.