ICBC Heavy Trailer Endorsement (Code 20) Practice Test

Choosing the right gear for the speed is effective for saving fuel because it ensures that the engine operates at its most efficient RPM range. Each vehicle has optimal efficiency at certain speeds and gear combinations. When you select the appropriate gear, you allow the engine to work efficiently without straining or running at excessive RPMs, which can lead to increased fuel consumption. This technique not only helps in maintaining fuel economy but also improves the overall performance and longevity of the vehicle.

In contrast, accelerating quickly to start can lead to excessive fuel use as it demands a sudden increase in power. Similarly, maintaining high RPM is often inefficient, as engines consume more fuel when they operate outside their optimal range. Speeding in the fast lane may initially seem like a time-saver, but driving at higher speeds generally leads to increased drag and fuel consumption, particularly in larger vehicles like those pulled with heavy trailers. Thus, selecting the right gear is a proven way to enhance fuel efficiency while driving, particularly with larger vehicles that require careful management.