Can I switch from 92 octane gasoline to 95 octane if I've been using 92 all along?

[VanVivienne]

Yes, you can switch from 92 octane gasoline to 95 octane. The reason is that gasoline grades are distinguished by octane ratings, and gasoline with higher octane ratings has better anti-knock properties, which can reduce the likelihood of engine knocking and improve engine performance. The difference between 92 and 95 octane gasoline lies in their octane content: 92 octane gasoline consists of 92% isooctane and 8% n-heptane, while 95 octane gasoline consists of 95% isooctane and 5% n-heptane. A car engine's compression ratio is set based on the octane rating of the fuel used. The compression ratio is an important structural parameter of an engine, representing the ratio of the gas volume when the piston is at the bottom dead center at the start of compression to the gas volume when the piston is at the top dead center at the end of compression.