What maintenance task helps ensure engine longevity?

• A. Ignoring warning lights
• B. Regular oil changes
• C. Only refueling when empty
• D. Cleaning the car's exterior

Answer: (B)

Regular oil changes are essential for maintaining engine longevity because the engine's oil serves multiple critical functions. Engine oil lubricates moving parts, reduces friction, and helps prevent wear. Over time, oil can become contaminated with dirt, debris, and byproducts of combustion, which can lead to reduced effectiveness in performing its functions. If oil changes are neglected, the oil can lose its properties, leading to increased friction and wear on engine components, which could eventually result in serious damage or complete engine failure.

In contrast, ignoring warning lights can lead to exacerbation of underlying issues that may need attention, and waiting until the fuel tank is empty can introduce dirt and sediment into the fuel system, compromising performance. Cleaning the car's exterior, while important for aesthetic purposes, does not contribute to the mechanical health of the engine. Regular oil changes, therefore, stand out as a proactive approach to preserving engine integrity and ensuring its longevity.