What type of maintenance can help prolong engine life?

Regular oil changes and fluid checks are crucial for prolonging engine life because they ensure that the engine is properly lubricated and that contaminants do not accumulate in the oil. Over time, engine oil breaks down and becomes less effective at reducing friction and wear within the engine components. Regularly changing the oil helps to remove harmful particles and metal shavings that can lead to premature wear.

Additionally, checking other fluids—such as coolant, brake fluid, and transmission fluid—ensures that all systems are functioning correctly and prevents issues that can arise from neglect. Keeping the engine properly maintained with fresh oil and fluids helps to optimize performance, improve fuel efficiency, and reduce the risk of catastrophic engine failures, contributing to a longer engine lifespan.

The other options do not align with effective maintenance strategies. Performing repairs only when problems arise may result in more significant damage being caused by not addressing issues promptly. Using cheaper parts can compromise the integrity of repairs, as these parts may not meet the necessary standards for performance and durability. Reducing fuel quality can lead to poor combustion, engine knocking, and long-term damage, all of which would negatively impact engine longevity.