Is Ethanol Gasoline 92 or 95?

[OJulian]

Ethanol gasoline can be both 92 and 95. The 92, 95, and 98 octane ratings all refer to ethanol gasoline. The different gasoline grades are due to different additives, with ethanol being added later in proportion. When refueling at a gas station, if the gasoline grade is preceded by the letter 'e', it indicates ethanol gasoline. Gasoline of different grades has different octane ratings, but the differences in other aspects are minimal. Generally, ethanol gasoline is a mixture of 90% gasoline and 10% ethanol, referred to as E10 ethanol gasoline. Typically, turbocharged engines require 95-octane gasoline because the cylinder pressure and temperature are higher during operation, necessitating gasoline with a higher octane rating to prevent knocking.