What are the effects of mixing 92 and 95 gasoline?
1 Answers
92 gasoline and 95 gasoline should not be mixed because they have different iso-octane contents. 92 gasoline is suitable for engines with low compression ratios, while 95 gasoline is suitable for engines with high compression ratios. If 92 gasoline is added to a car that requires 95 gasoline, it may cause abnormal combustion, leading to knocking. Knocking not only damages the combustion chamber but also directly affects the normal operation of the engine, and in severe cases, it may cause engine damage. If 95 gasoline is added to a car that requires 92 gasoline, although it will not damage the engine, 95 gasoline is more expensive than 92 gasoline, resulting in unnecessary costs. The differences between 92, 95, and 98 gasoline: Standard gasoline is composed of iso-octane and n-heptane. Iso-octane has good anti-knock properties, and its octane number is defined as 100; n-heptane has poor anti-knock properties and is prone to knocking in gasoline engines, so its octane number is defined as 0. If the gasoline is labeled as 92, it means that the gasoline has the same anti-knock properties as standard gasoline containing 92% iso-octane and 8% n-heptane. The same principle applies to 95 and 98 gasoline. Solutions for adding the wrong gasoline: If the gasoline added has a higher octane rating than the car's requirement, for example, adding 95 gasoline when 92 is required, simply switch back to 92 gasoline after consuming the current fuel. If the gasoline added has a lower octane rating than the car's requirement, for example, adding 92 gasoline when 95 is required, you can add a high anti-knock fuel additive. Alternatively, you can drain the fuel and refill with 95 gasoline. To determine the correct gasoline for your car, refer to the vehicle's user manual or check the fuel grade marked on the fuel tank cap.
