| abstract |
Disclosed herein is an unleaded low emissions gasoline for use in an internal combustion engine having an octane (R+M)/2 less than 86.7 and a sulfur content less than 40 ppmw and optionally containing an oxygenate selected from the group consisting of ethanol, methyl tertiary butyl ether, ethyl tertiary butyl ether, and tertiary amyl ether, and having reduced emissions by comparison to a minimum 87 octane gasoline. |