How many different grades of gasoline are there?



  1. 0 Votes

    There are three grades, 87 Regular, 89 Mid-grade or Plus, and 92 Premium.  Gasoline grades are based on octane rating.  Octane rating is based on the ability of the fuel to ignite.  The lower the rating, the more prone the fuel is to engine, “knocking” or preignition.

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