Which is more expensive among 92, 95, and 98 gasoline?
2 Answers
Gasoline is priced according to its octane rating. 92-octane gasoline is the cheapest, 95-octane gasoline is moderately priced, and 98-octane gasoline is the most expensive. The fuel used by motor vehicles must be of the specified octane rating as indicated on the vehicle. The fuel rating is usually marked on the inside of the fuel tank cap. The differences among the three are as follows: Different octane values: The difference between 92-octane and 95-octane gasoline lies in their octane values. 92-octane gasoline has an octane value of 92, while 95-octane gasoline consists of 95% isooctane and 3% n-heptane. Gasoline with a higher octane value has better anti-knock performance. Different anti-knock properties: Gasoline grades are classified by octane ratings. The higher the octane number, the better the anti-knock performance. Different applicable vehicle types: When choosing between 92-octane and 95-octane gasoline, vehicle owners should refer to the car's manual. Generally, low-end commuter cars only require 92-octane gasoline, while mid-range cars need 95-octane gasoline to meet engine requirements. 98-octane gasoline is suitable for high-end luxury or high-performance vehicles.
As a seasoned driver with years of experience, I frequently refuel my car and have noticed significant price differences among gasoline grades. The 92-octane gasoline is the cheapest due to its lower octane rating and average anti-knock performance, making it suitable for regular family cars. The 95-octane is slightly more expensive, with a moderate octane rating, and is the standard choice for most modern vehicles, offering a balance between performance and price. The 98-octane gasoline is the most expensive, boasting the highest octane rating and superior anti-knock properties, designed specifically for high-performance sports cars or turbocharged engines. At gas stations, 98-octane typically costs a few cents more per liter, adding up to a difference of 20-30 yuan for a full tank. Over time, using 98-octane can protect the engine from wear and prevent piston damage caused by knocking, but if you drive a compact car like an Alto, 92-octane is sufficient and more economical. The key is to follow the owner’s manual for the recommended grade—don’t blindly opt for higher grades and waste money. My advice is to regularly compare promotions at different gas stations to save wherever possible.
