Labeling
Article 7 of of April 6, 2016, of the Ministry of Energy and Mines, specifies the labelling of fuel at the pump:
The petrol pumps of all the outlets that operate in the country must have in a perfectly visible form a legend with the indication of the octane number or octane index. In the case of commercializing gasoline with more than 12% volume of ethanol (with a tolerance of 10%), the dispensers must have the legend “ALCONAFTA”.
The alconafta, however, is not often found in Argentina. Pictures of a gas station are provided below.
Example of fuel station in Argentina, 2023
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Source: SGS INSPIRE, 2023