Hydrocarbons

The aromatics content of gasoline samples is shown in the two figures below. On average, aromatics in the RON 93 grades are lower than in the RON 95 grades. All the samples were below the regulated limit of 50% vol. The majority of samples were also below the South African Clean Fuels 2 limit of 35% vol.; however some samples had aromatics content above this future limit.

The benzene content of gasoline samples is shown in the two figures below. All the samples were below the regulated maximum of 5% vol.