Can I Add 95 Octane Gasoline After Using 92 Octane?

[EvanMarie]

You can add 95 octane gasoline after using 92 octane, but it's not recommended to mix them for extended periods. The reasons are as follows: 1. Prolonged mixing of different octane ratings may affect the lifespan of your car's ignition system, fuel injectors, and spark plugs, potentially advancing the need for major repairs. It's advised to avoid mixing unless absolutely necessary. 2. Adding 95 octane to a car that normally uses 92 octane generally won't cause problems, but doing the reverse may lead to vehicle damage. Using lower octane gasoline than recommended may cause engine knocking, and in severe cases, could result in bent valves or damage to the valve cover.