Can a Car Designed for 92 Octane Use 95 Octane?

[LaJesse]

A car designed to use 92 octane gasoline can occasionally be filled with 95 octane gasoline, but it should not be used for an extended period. Below are the consequences of using fuel that does not match the engine's requirements: 1. Using lower octane fuel in a high-compression engine can lead to reduced power output and damage to engine components. 2. Using higher octane fuel in a low-compression engine can cause incomplete combustion and also damage engine components. Here is additional information about gasoline grades: 1. The octane rating of gasoline is determined by its Research Octane Number (RON). For example, 92 octane gasoline has a RON of at least 92. The choice of gasoline grade for an engine primarily depends on whether the compression ratio matches the gasoline's octane rating. 2. The terms 92, 95, and 98 octane unleaded gasoline refer to fuels containing 92%, 95%, and 98% of "isooctane," which has strong anti-knock properties, and 8%, 5%, and 2% of "n-heptane," which has poor anti-knock properties, respectively.