Can a Turbocharged Engine Use 92 Octane Gasoline?
2 Answers
Can a Turbocharged Engine Use 92 Octane Gasoline? A turbocharged engine can use 92 octane gasoline. Reasons Why Japanese Cars Avoid Turbochargers: Japanese automakers place great emphasis on vehicle durability and fuel economy. However, after adopting turbocharging technology, engine lifespan inevitably decreases. This is because compressed air entering the combustion chamber allows for more complete fuel combustion, but excessive combustion explosion force directly reduces cylinder lifespan, consequently shortening engine longevity. Principles of Turbocharged Engines: Turbocharged engines deliver more explosive power output. Increasingly stringent emission regulations, led by the EU, have provided the driving force for turbocharged engine development. With advancements in materials, mechanical processing, and electronic control technologies, drawbacks such as nonlinear power output and turbo lag have been improved, while lifespan and reliability have also been enhanced.
As a long-time driver of turbocharged vehicles, I have personally experienced the consequences of using the wrong fuel. Initially, to save some trouble, I refueled with 92-octane gasoline a few times, which resulted in noticeable engine knocking sounds and a significant lack of power when climbing hills. A visit to the 4S shop revealed that turbocharged engines typically have a compression ratio above 10:1, and the lower octane rating of 92-octane gasoline makes it prone to premature combustion under high temperature and pressure conditions. Now, I strictly use 95-octane fuel. Although it costs a few cents more per liter, my fuel consumption has actually decreased by about 8%, making it more economical in the long run.
