What happens if you use 92 gasoline in a car that requires 95?
2 Answers
Occasionally using 92 gasoline won't have a significant impact, but prolonged use of 92 gasoline can cause damage to the car's engine. More relevant information is as follows: 1. The reason cars are labeled with fuel grades is due to differences in engine performance. Cars that use higher-grade gasoline have better engine anti-knock performance. If the engine's fuel grade is 95, then the engine must be filled with 95 gasoline. 2. Long-term use of different fuel grades can affect the service life of the car's ignition system, fuel injectors, and spark plugs. In severe cases, it may cause engine shaking, valve bending, valve cover damage, and other issues.
Last time I drove my car, which usually takes 95-octane gasoline, I accidentally filled it with 92-octane at the gas station. After that, the car felt sluggish, and the engine occasionally made a knocking sound, as if it were sick. After checking, I learned that high-compression ratio cars require high-octane fuel, and 92-octane is too low, which can cause premature ignition in the cylinders, leading to knocking. The engine then goes into self-protection mode, reducing power output to avoid damage. Using lower-octane fuel once or twice in the short term might not cause issues, but long-term use can damage pistons, valves, and even increase carbon buildup, leading to expensive repairs. So now, I always double-check the label when refueling to avoid saving small money but losing big in the long run. After all, the engine is the heart of the car, and replacing it could cost thousands or even tens of thousands of dollars.
