What grade of gasoline should the Tacqua 1.4T use?
2 Answers
The Tacqua 1.4T can use 95 octane gasoline. Introduction to 95 Octane Gasoline: 95 octane gasoline consists of 95% isooctane and 5% n-heptane. High-compression engines should use high-octane gasoline. Using low-octane gasoline in a high-compression engine can cause abnormal combustion, resulting in knocking, increased fuel consumption, and reduced driving power. High-compression engines can also use lower-grade gasoline, but the choice should not be based solely on compression ratio. Always follow the manufacturer's recommendations for fuel. Gasoline Grades: In China, gasoline grades under China IV standards include 90, 93, and 97, while under China V standards, they include 89, 92, 95, and 98. The gasoline grade indicates the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the grade, the stronger the anti-knock performance. The standard for choosing gasoline is based on the engine's compression ratio.
I've been driving the Volkswagen Tacqua 1.4T for a while now. The manufacturer recommends using 95-octane gasoline because its turbocharged engine requires higher-octane fuel to prevent knocking. Simply put, 95-octane fuel has better anti-knock properties, protecting engine components and extending their lifespan. From personal experience, acceleration is smoother and fuel consumption remains stable with 95-octane. If you use 92-octane, the power feels sluggish, noise increases, and carbon buildup may worsen. Develop a good habit of refueling at reputable gas stations—don't cut corners to save a few bucks, as the long-term savings on repairs will outweigh the difference. In winter or during long trips, quality fuel ensures smoother starts. Remember to check fuel quality regularly.