Can 92 and 95 Octane Gasoline Be Mixed?
2 Answers
92 and 95 octane gasoline should not be mixed for the following reasons: it can affect the normal operation of the engine, leading to increased car noise, reduced driving power, and potential engine damage. Gasoline is a volatile and flammable hydrocarbon mixture liquid obtained from petroleum through distillation, cracking, or pyrolysis, and it is used as fuel. The characteristics of gasoline include: 1. Evaporation: It quickly vaporizes in the engine cylinder and forms a uniform combustible mixture with air; 2. Stability: The ability to resist oxidation under normal temperature and liquid phase conditions is called stability; 3. Anti-knock: Refers to the ability of gasoline to resist detonation combustion under various usage conditions; 4. Corrosiveness: Sulfur compounds in gasoline can cause corrosion to objects.
I've been driving for over 20 years and encountered all kinds of situations, including mixing 92 and 95 octane gasoline. To be honest, in emergencies like when you can't find a 95 octane station on the highway, temporarily adding some 92 octane as a stopgap is usually fine – the car won't immediately break down. But don't make it a habit, because engines are designed for specific octane ratings. Mixing fuels may reduce fuel efficiency, increase carbon deposits, and in the long run, decrease power or even damage components. I recommend always using the fuel grade specified in your vehicle's manual – if it calls for 95 octane, stick with it. After mixing, it's best to refill with the correct gasoline as soon as possible to flush out the effects of the lower octane fuel. For daily maintenance, regular checks of the fuel system can help prevent surprises.
