Does Mixing Gasoline Have Any Impact?

[McEllie]

Mixing gasoline types will not cause significant issues in the short term. However, prolonged use may lead to engine knocking, especially noticeable during idling. Below is relevant information about mixing gasoline: 1. Different Octane Ratings: Mixing two types of gasoline may cause certain damage to the engine. Since 92 and 95 octane gasoline have different octane ratings, mixing them can affect the operation of fuel injectors and carburetors. Firstly, fuel injectors may become clogged due to the mixture, potentially preventing complete atomization of the mixed gasoline. This incomplete combustion in the engine increases carbon deposits, ultimately reducing engine performance and possibly leading to premature engine failure. 2. Different Cleanliness Levels: The cleanliness of gasoline is not determined by its octane rating but by national standards, such as China IV or China V seen at gas stations. The main difference lies in sulfur content—for example, China V gasoline can have five times less sulfur than China IV. Sulfur content directly affects the cleanliness of gasoline and its combustion byproducts.