What is the difference between 92 and 95 gasoline?
2 Answers
The difference between 92 and 95 gasoline lies in their composition: 92 gasoline contains approximately 92% isooctane and about 8% n-heptane, while 95 gasoline contains approximately 95% isooctane and about 5% n-heptane. The gasoline octane rating actually represents its anti-knock performance, with higher numbers indicating better anti-knock capability. Gasoline is a colorless to pale yellow, easily flowing liquid at room temperature, difficult to dissolve in water, flammable, with a distillation range of 30 to 220 degrees. Gasoline products can be divided into three main categories based on their use: aviation gasoline, automotive gasoline, and solvent gasoline. The first two are primarily used as fuel for gasoline engines, while solvent gasoline is used in the production of synthetic rubber, paint, grease, fragrances, etc.
The main difference between 92 and 95 gasoline lies in their anti-knock properties, which actually makes a noticeable difference in driving experience. Having used both, I clearly feel that 95 performs more stably when the engine is under heavy load, making it less prone to knocking sounds when climbing hills. The octane numbers represent their octane ratings - 95 has a higher octane value, making it more suitable for high-compression engines. For cars designed for 92, using 95 won't bring significant benefits and is just a waste of money. Conversely, long-term use of 92 in vehicles requiring 95 may lead to increased carbon deposits and even engine damage. Price-wise, 92 is a few cents cheaper per liter, but don't underestimate this difference - it adds up to significant savings on long trips. Always refer to your owner's manual when refueling, and don't blindly pursue higher or lower octane ratings.
