What Are the Types of Gasoline at Gas Stations?
2 Answers
Gasoline is categorized into leaded gasoline, unleaded gasoline, and another type called ethanol gasoline. Common gasoline grades include 89, 92, 95, and 98. The differences between these types of gasoline are as follows: 1. Different Octane Ratings: 89 gasoline contains 89% isooctane; 92 gasoline contains 92% isooctane; 95 gasoline contains 95% isooctane; and 98 gasoline contains 98% isooctane. 2. Different Anti-Knock Properties: The higher the gasoline grade, the higher the isooctane content, resulting in stronger anti-knock performance. 3. Different Applicable Compression Ratios: Different gasoline grades have varying compression ratio requirements. The higher the engine's compression ratio, the higher the required gasoline grade. Generally, engines with a compression ratio greater than 8.0 should use 92 gasoline; those with a compression ratio greater than 9.0 should use 95 gasoline; and engines with a compression ratio greater than 10.0 should use 98 gasoline. 4. Different Applicable Models: 92 gasoline is suitable for ordinary cars with low technical specifications, 95 gasoline is suitable for most cars, and 98 gasoline is suitable for luxury cars and sports cars.
When refueling, I often see different grades of gasoline, mainly three types: 87 octane regular gasoline, 89 octane mid-grade gasoline, and 91 octane or higher premium gasoline. The 87 octane is the cheapest and most commonly used, suitable for most family cars. For example, my old car uses it, saving money and being practical. The 89 octane is slightly better, suitable for some cars that require stronger power. The 91 octane is for sports cars or high-performance vehicles, with better anti-knock properties. Additionally, some gas stations offer E10 gasoline, which contains 10% ethanol, is more environmentally friendly but may increase fuel consumption. My experience is not to casually use higher octane gasoline, as it may waste money without much effect. Be sure to check your car’s manual to see what grade is recommended to avoid engine problems. Gasoline grades vary by region; for example, premium gasoline is more common in cities, while rural areas have fewer choices. When choosing gasoline, also pay attention to price fluctuations. After the recent rise in oil prices, I’ve been focusing more on cost-saving options.
