With the continuous development of automotive technology, people have become more concerned about the choice of automobile fuel. In the market, our common types of gasoline include 92, 95 and 98, which correspond to different octane numbers. However, there has been a lot of controversy and questions about whether these different specifications of gasoline can be mixed.
1. The importance of octane number:
The octane number of gasoline is an indicator of its resistance to **, indicating the ability of gasoline to resist spontaneous combustion in an internal combustion engine. The higher the octane number, the more difficult it is for gasoline to spontaneously ignite under high pressure, and it has better resistance to **. It is usually expressed as a Ron (Research Octane Number), and the Ron value is indicated on commercially available gasoline. Different specifications of gasoline, such as 92, 95, and 98, correspond to different octane numbers, and the higher number of gasoline is usually suitable for high-performance engines. Different gasoline specifications have different octane ratings, with 92 gasoline generally being lower and 98 being higher. The octane number directly affects the process of gasoline combustion in the engine. A higher octane number can improve the anti-** performance of gasoline, prevent spontaneous combustion in the cylinder, and help the engine work normally.
Second, the working principle of the engine:
The internal combustion engine of an automobile achieves power output through a series of precise work stages. First, the air and fuel mixture enters the cylinder, then the piston compresses the mixture, and the ignition system initiates a spark at the right time, and the combustion produces a high-temperature and high-pressure gas that pushes the piston down. Finally, the exhaust valve opens and the exhaust gases are exhausted, preparing for the next cycle. This cycle is staggered between multiple cylinders, and by repeating itself, it provides the continuous power needed to drive the car.
In this process, the ignition of the mixture needs to meet certain conditions, one of which is the octane number. If a lower octane gasoline is used, it can lead to incomplete combustion, causing engine failure and even damage to engine components in severe cases. Therefore, knowing the octane number is essential to maintain the healthy operation of the engine.
3. Possible effects of mixed use:
The mixing of gasoline 92 and 95 can have a multifaceted impact on the vehicle. First of all, due to the difference in octane number between No. 92 and No. 95 gasoline, it may lead to changes in ignition performance and combustion efficiency, especially the difference in spontaneous combustion performance at high pressure. This can affect the ignition and combustion process of the engine, having an impact on the combustion efficiency. Second, some vehicles may use specific octane gasoline depending on the design and compression ratio requirements, and mixing different specifications of gasoline may reduce engine performance, especially in high-performance engines.
In addition, automakers often specify specific gasoline specifications for vehicles based on engine design and performance requirements. Mixing different gauges of gasoline can violate the manufacturer's recommendations, leading to vehicle warranty issues.
Fourth, the system of suggestions and precautions:
Most automakers have clear fuel requirements in their vehicle manuals or on fuel tank caps. In order to ensure the normal operation of the vehicle and maintain the long life of the vehicle, it is recommended that the owner choose the corresponding specifications of gasoline in strict accordance with the manufacturer's regulations.
If the manual states that 92 gasoline is used, it is best not to mix 95 or 98 gasoline. Vice versa. The manufacturer's recommendations are based on the results of vehicle engine design and performance tests, and mixing different specifications of gasoline may invalidate these designs and tests, negatively impacting the vehicle.
The mixing of 92, 95 and 98 gasoline may have an impact on the engine, especially if the vehicle manufacturer dictates the use of specific specifications. In order to ensure the proper operation of the car and the maintenance of the life of the vehicle, the owner is advised to choose the appropriate specification of gasoline according to the manufacturer's regulations. When mixing gasoline in exceptional cases, it is advisable to think carefully and, if necessary, consult the advice of a professional car repairer. The use of automobiles involves safety and performance issues, and caution is required to ensure the reliability and safety of the vehicle.