What vehicle maintenance checks are crucial before long journeys?

Prior to embarking on long journeys, it is essential to perform comprehensive vehicle maintenance checks to ensure safety and reliability on the road. Checking oil levels, tire pressure, brakes, and lights are all critical components of this maintenance regimen.

Oil levels are important because proper lubrication is necessary for the engine's function, preventing overheating and excessive wear. Tire pressure directly affects handling, fuel efficiency, and safety; under-inflated tires can lead to blowouts or decreased traction. The brakes are a key safety feature; ensuring they are functioning correctly is crucial for stopping effectively in an emergency. Additionally, checking the lights (headlights, brake lights, turn signals) is essential for visibility and communication with other drivers, especially during low-light conditions.

In contrast, focusing solely on the fuel level does not address several other potential issues that could arise during a long trip, potentially compromising safety and vehicle performance. Inspecting the exterior paint quality, while part of overall vehicle maintenance, does not have a direct impact on the mechanical and safety aspects of the vehicle during travel. Verifying radio functions is related to entertainment and comfort rather than safety or operational readiness. Hence, a thorough inspection of critical systems is vital before long journeys, which aligns with the correct choice.