What is the difference between 97 and 98 gasoline?
1 Answers
Compared with 97 gasoline, 98 gasoline has a higher anti-knock index (RON) by one octane number unit. To increase the octane number of 97 unleaded gasoline by one unit requires greater technical difficulty and higher processing costs. The higher the octane rating, the stronger the anti-knock performance. What people generally consider as "purer" and better is mainly reflected in the anti-knock performance of gasoline. The applicable ranges for different grades of gasoline are as follows: 1. 90 gasoline: suitable for cars with engine compression ratios between 7.5 and 8.0. 2. 93 gasoline: suitable for cars with engine compression ratios between 8.0 and 8.5. 3. 97 gasoline: suitable for cars with engine compression ratios between 8.5 and 9.5.