Which two components are crucial when preparing for a long trip?

Filling up the gas tank and checking tire tread are essential when preparing for a long trip. Ensuring the gas tank is full prevents running out of fuel on the road, which is critical for maintaining a continuous journey without unnecessary delays. Tire tread condition is equally important; adequate tread depth is vital for safe traction on various road surfaces, and checking it helps to prevent tire blowouts or accidents due to insufficient grip, especially under poor driving conditions.

While checking air pressure and oil levels is certainly important for vehicle maintenance, they play a supporting role in the context of long-distance travel. Similarly, cleaning windows and organizing the cabin enhances comfort and visibility but does not address immediate risks associated with the trip itself. Adjusting seat and mirror angles contributes to a better driving posture and visibility but is more about driver comfort than the vehicle's operational readiness for a long journey. Therefore, focusing on fuel levels and tire tread addresses the most critical aspects of vehicle readiness for an extensive trip.