Why is there no 93-octane gasoline now?

1 Answers
McArcher
07/30/25 5:32am
93-octane gasoline has been replaced by 92-octane gasoline. Here is the relevant information: 1. Regulations: Starting from 2013, some cities in China began implementing the fifth-stage national standard for vehicle gasoline, and it was fully implemented nationwide starting in 2017. The National IV 90#, 93#, and 97# gasoline grades were all adjusted to National V 89#, 92#, and 95#, with the addition of 98# gasoline. 2. Fuel composition: After the change to the new grades, the sulfur, olefin, and manganese content in the fuel were significantly reduced. This will effectively reduce vehicle exhaust emissions, prevent smog, and improve air quality. At the same time, it can also effectively improve the combustion performance of the fuel and extend the service life of the engine.
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