Should the Accord use 92 or 95 octane gasoline?
1 Answers
If it is an Accord equipped with a turbocharged engine, it is recommended to use 95 octane gasoline. For older Accord models with naturally aspirated engines, 92 octane gasoline is sufficient. The octane rating of gasoline represents the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the octane number, the stronger the anti-knock performance. Standard gasoline is composed of isooctane and n-heptane. A higher octane number does not necessarily mean better performance; the appropriate gasoline grade should be selected based on the engine's compression ratio. Different gasoline grades correspond to different engine compression ratio requirements. The higher the engine's compression ratio, the higher the required gasoline grade. Generally, engines with a compression ratio above 8.0 should use 92 octane gasoline; those above 9.0 should use 95 octane gasoline; and those above 10.0 should use 98 octane gasoline. For vehicles that have been in long-term use, adding a gasoline additive to the fuel tank can effectively remove carbon deposits, sludge, and other deposits in the engine's fuel system. After using a gasoline additive, the vehicle may exhibit stronger power, better fuel economy, improved idle stability, and reduced emissions.
