"Puso e sweditse gore go tla letlelelwa dikereiti tse tharo tsa octane tsa peterolo e e se nang lloto mo Aforikaborwa ( mo dikgaolong tsa mabopo le tse di mo gare ga naga ) morago ga 1 Ferikgong 2006 , e leng 91 , 93 le 95 Research Octane Number ( RON ) . "