What are the effects of mixing E92 and 92 gasoline?
1 Answers
92 gasoline and 95 gasoline cannot 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 should use 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, may cause engine damage. If 95 gasoline is added to a car that should use 92 gasoline, although it will not damage the engine, 95 gasoline is more expensive than 92 gasoline, resulting in unnecessary costs. Differences between 92, 95, and 98 gasoline: Standard gasoline is composed of iso-octane and n-heptane. Iso-octane has good anti-knock properties, with its octane rating set at 100; n-heptane has poor anti-knock properties and is prone to knocking in gasoline engines, with its octane rating set at 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. What to do if the wrong gasoline is added: If gasoline with a higher octane rating than specified for the car is added, for example, adding 95 when 92 is specified, simply switch back to 92 gasoline after the current fuel is consumed. If gasoline with a lower octane rating than specified for the car is added, for example, adding 92 when 95 is specified, you can add a high anti-knock fuel additive. Alternatively, you can directly drain the fuel and refill with 95 gasoline. To find out which gasoline your car requires, you can refer to the car's user manual or check the fuel grade marked on the fuel tank cap.
