What are the effects of accidentally adding 92 ethanol gasoline?
2 Answers
The effects of accidentally adding 92 ethanol gasoline include: 1. Increased fuel consumption: Since the heat value of ethanol is about 33% lower than that of gasoline, the energy density of ethanol gasoline is reduced compared to pure gasoline of the same volume; 2. Decreased power performance: Due to the lower heat value of ethanol gasoline compared to pure gasoline, and the higher evaporation temperature of ethanol than gasoline, the slower vaporization speed during combustion affects the formation of the air-fuel mixture, ultimately leading to a decrease in power; 3. Difficulty in cold starts: Ethanol gasoline has a high latent heat of vaporization, absorbing more heat during vaporization, which reduces the working temperature inside the engine cylinder, making it difficult to start at low temperatures. Ethanol gasoline not only reduces vehicle emissions but also has excellent cleaning properties, effectively eliminating the deposition and coagulation of fuel impurities in the fuel tank and fuel system (especially gelling phenomena), providing good fuel system cleaning.
My friend just asked me about this the other day. He accidentally filled his beloved car with 92 ethanol gasoline and asked me how big the impact would be. I have to say, it depends on your engine type. The octane rating of 92 is usually a bit lower than 95. If your car has a high-compression engine, you might hear knocking sounds after filling up—that's the noise from incomplete combustion inside the engine, like piston knocking. In the short term, you might see slightly higher fuel consumption and weaker acceleration. Ethanol gasoline contains 10% ethanol, which has a cleaning effect that can reduce carbon buildup, but it's also highly hygroscopic. If the air is humid or the fuel sits in the tank for a long time, it might absorb water, leading to corrosion in the fuel system or rubber components. Older cars are especially sensitive to this. However, most modern cars are compatible with E10 gasoline, and it’s usually fine after you finish the tank and switch back to a higher grade. Don’t worry too much. Just remember to check the manual next time before refueling to see what’s recommended, and avoid frequently using the wrong fuel to prevent engine damage.
