Can Jetta VS7 Use 92 Octane Gasoline?
2 Answers
Jetta VS7 can use 92 octane gasoline. However, using 95 octane gasoline provides better engine protection. High-compression engines can also use lower-octane gasoline, but you should not blindly choose gasoline based on compression ratio. Instead, follow the manufacturer's fuel requirements. Below is more information about gasoline octane ratings: Meaning: The octane rating represents the fuel's resistance to knocking (anti-knock quality). Higher octane ratings indicate better anti-knock performance, which leads to smoother engine operation, reduced wear, and better engine protection. However, higher octane does not always mean better. Importance of choosing the right gasoline: Using low-octane gasoline in a high-compression engine may cause incomplete combustion, severe engine knocking, reduced power output, engine damage, increased fuel consumption, and poor driving performance. Conversely, using high-octane gasoline in a low-compression engine may result in delayed combustion (where the fuel does not ignite at peak compression), also leading to incomplete combustion. This requires additional fuel injection to maintain power output, which not only offers no benefit to the engine but also increases fuel consumption.
I've been driving my Jetta VS7 for three years and using 92-octane gasoline without any issues. The car's engine was originally designed to be compatible with 92-octane fuel, and there's even a recommended octane rating label inside the fuel filler cap. The gas station attendants often say that using 95-octane is better for the car, but after trying it a few times, I noticed no difference in power or fuel consumption. Spending those extra cents per liter just isn't worth it. I mainly use it for commuting in the city and weekend family road trips, and the engine has never given me any trouble. However, it's important to avoid small, cheap gas stations as their lower-quality 92-octane fuel might contain impurities. I always fill up at Sinopec, and a full tank gets me over 600 kilometers—peace of mind and savings all in one.
