What to Do If 92 Octane Gasoline Is Accidentally Filled with 98 Octane?

[DelNova]

Filling a car that normally uses 92 octane gasoline with 98 octane is generally not a problem, but long-term mixing of different octane levels should be avoided. If a vehicle is designed for 95 or 98 octane gasoline and is filled with 92 octane, it may cause issues, especially if 92 octane is used continuously over time. This can lead to increased knocking frequency and accelerated engine wear. Different octane levels have varying utilization rates and combustion efficiencies in the engine. The octane rating represents the ratio of the actual gasoline's anti-knock properties to those of standard gasoline, with higher numbers indicating stronger anti-knock performance. Standard gasoline is composed of isooctane and n-heptane, and higher octane numbers are not necessarily better. It's important to choose the appropriate gasoline octane based on the engine's compression ratio.