Can a Car Designed for 92 Octane Use 98 Octane Fuel?
1 Answers
A car designed for 92 octane can use 98 octane fuel, but it is unnecessary to use 98 octane gasoline for a 92 car. 98 octane gasoline currently has the highest octane rating in China. Although it offers better anti-knock performance and higher power, vehicles with lower octane requirements should not blindly opt for higher octane gasoline. Higher octane numbers are more suitable for engines with larger compression ratios, while 92 cars typically have smaller compression ratios. Using 98 octane gasoline may increase engine knocking. Below is relevant information about compression ratios: 1. For a compression ratio of 7.5~8.0, 90 octane gasoline should be used. 2. For a compression ratio of 8.0~8.5, 90~93 octane gasoline should be used. 3. For a compression ratio of 8.5~9.5, 93~95 octane gasoline should be used. 4. For a compression ratio of 9.5~10, 95~97 octane gasoline should be used.