What should a driver double-check before starting a trip?

Before starting a trip, a driver should double-check the cargo load and distribution for several important reasons. Ensuring that the cargo is loaded correctly and evenly distributed is crucial for maintaining the vehicle's stability and handling during transit. An improperly loaded truck can lead to problems such as excessive swaying, difficulty in steering, and increased stopping distances, which can all create hazardous driving conditions.

Additionally, verifying the cargo distribution helps in avoiding overload on any single axle, which can result in tire blowouts, increased wear and tear, and even violations of legal weight limits. It's also necessary to make sure that cargo is secured to prevent shifts during transport, which can cause accidents.

While checking the engine oil level and other vehicle settings like the radio and seat position are important for overall vehicle maintenance and comfort, they do not have as direct an impact on the safe operation of the vehicle during a trip as the cargo load and distribution do. Thus, prioritizing the assessment of the cargo is essential for ensuring the safety of the driver, the vehicle, and others on the road.