As the years have passed, the days of simply putting $5 of gas into your car and hitting the road are long gone. Energy.gov has revealed that since 2018, most light-duty vehicles have been recommended to use premium fuel by automakers. This change is due to the shift towards smaller turbocharged engines and higher compression ratios requiring higher octane fuel. In this article, we will explore the importance of octane ratings in fuel and why more vehicles now require premium fuel.
More than half of all light-duty vehicles now come with a premium fuel recommendation, a significant increase from just 6.5 percent back in 1985. The trend towards using premium fuel has steadily grown as automakers have embraced smaller turbocharged engines and higher compression ratios in order to extract more power and improve fuel efficiency. As a result, the number of vehicles that do not require premium fuel has dwindled over the past two decades.
Octane ratings measure a fuel’s ability to prevent “pinging” or “knocking” in the engine. Most gas stations in the U.S. offer three octane ratings – 87 for regular fuel, and 93-94 for premium fuel. Higher octane fuel is better able to resist knocking at higher compression levels, allowing automakers to get more power from turbocharged engines. Some racing fuels have even higher octane ratings, but for typical vehicles, premium fuel is usually sufficient to prevent knocking.
While it is recommended to follow your vehicle manufacturer’s fuel recommendations, there may be times when premium fuel is not available. In such cases, many newer vehicles have advanced engine control systems that can adjust to lower-octane fuels. However, using lower-octane fuel can result in decreased fuel economy and power. On the other hand, using premium fuel in a vehicle that is not designed to benefit from it may not yield any noticeable advantages and will cost more in the long run.
Using the right octane fuel for your vehicle is essential for optimal performance. Higher-octane fuel can result in improved engine efficiency and power output, especially in turbocharged engines. However, using lower-octane fuel or the wrong type of fuel can lead to decreased performance and potential engine damage over time. It is important to understand your vehicle’s fuel requirements and adhere to them for the best results.
In conclusion, the shift towards premium fuel recommendations for light-duty vehicles reflects the automotive industry’s move towards smaller, more efficient engines. Understanding the importance of octane ratings and using the right fuel for your vehicle is crucial for maintaining performance and efficiency. While it may be possible to use lower-octane fuel in a pinch, it is best to follow your manufacturer’s recommendations to ensure optimal performance and longevity of your vehicle.