What to Do If 92 and 98 Gasoline Are Mixed?

[KingstonRose]

If the vehicle's specified gasoline grade is 92, mixing in 98 gasoline is acceptable, but long-term mixed use is not recommended. However, if the vehicle's specified gasoline grade is 95 or 98, mixing in 92 gasoline will have adverse effects. Long-term use of 92 gasoline in such cases should be avoided, as it increases the frequency of engine knocking and accelerates engine wear. Below are additional details about gasoline: 1. Do not blindly use higher or lower-grade gasoline than recommended, as this can lead to increased carbon deposits. Always follow the manufacturer's recommended gasoline grade for optimal performance. Refueling according to the engine's compression ratio or the vehicle's manual is more scientific, economical, and helps maximize engine efficiency. 2. Gasoline grades indicate the octane rating. For example, 92 gasoline consists of approximately 92% isooctane and 8% heptane. Since isooctane has better anti-knock properties compared to heptane, higher-grade gasoline (with higher octane ratings) offers better anti-knock performance.