This is necessary to change motor oil more often than the manufacturer suggests. While it may seem like overkill, the answer is nuanced and depends on several factors like driving conditions, engine type, oil quality, and even driver habits. Here, we’ll dive into why it’s worth considering more frequent oil changes, despite the often generous intervals recommended by car makers.
1. Manufacturer Recommendations Are a Guideline, Not a Guarantee
Automakers set standard oil change intervals based on average driving conditions. They may also extend intervals for marketing reasons, to appeal to buyers by making maintenance appear less costly or frequent. In reality, city driving—marked by constant stopping, starting, and varying engine loads—can cause oil to wear out faster due to higher temperatures and rapid, repetitive load changes. Under these conditions, manufacturer recommendations can be overly optimistic.
2. Fuel Quality and Oil Contamination
Fuel quality varies widely, and low-quality fuel can lead to faster buildup of engine deposits and quicker oil oxidation. This can mean that if you’re filling up with fuel of questionable quality, frequent oil changes could help mitigate wear. Oil also breaks down more quickly in polluted environments: dusty or dirty conditions can degrade oil faster, meaning that extra oil changes are beneficial in protecting your engine.
3. Myth of the Dashboard Warning Light
Many modern cars are equipped with dashboard lights that alert you when it’s time for an oil change. However, these indicators are based on mileage and general driving conditions, rather than a complete picture of your engine’s wear. For instance, short urban trips can cause moisture to accumulate in oil, decreasing its effectiveness, and this issue isn’t always flagged by dashboard indicators.
4. Protecting Turbocharged Engines and High-Performance Components
Modern engines, particularly turbocharged ones, operate at higher temperatures and endure heavier loads, so motor oil is subjected to greater stress. Extra contaminants and higher temperatures alter oil’s chemical structure, decreasing its ability to oil efficiently and increasing deposit buildup on turbo components. Frequent oil changes can significantly extend the lifespan of turbochargers as well as the engine.
The Reality: Advantages of Changing Oil More Often
Reduced Wear and Buildup: Regular fresh oil reduces contaminant accumulation, prolonging the lifespan of engine parts.
Enhanced oiled: Fresh oil provides better protection for components, especially under high stress or heavy loads.
Lower Overheating Risk: Clean oil dissipates heat better, a critical factor for turbocharged engines.
Long-Term Financial Savings: While changing oil more often may seem costly in the short term, it can help prevent expensive repairs and improve fuel efficiency, leading to savings over time.
More frequent oil changes offer additional protection and extend the life of your engine, especially if your car operates in less-than-ideal conditions. While it may go against official recommendations, for drivers looking to get the most out of their engine, this is a smart and justified approach.