Diesel fuel was stored in an underground tank tied to an unleaded gasoline pump at a Circle K in Avon, Ohio, resulting in damages for 14 motorists.

Ethanol is now up to ten per cent in regular unleaded (E10) gasoline and remains at five per cent in superunleaded (E5) formulas; although it helps lower emissions it attacks non-ferrous metals ...

Cirrus said it supports the transition to unleaded fuel but does not approve of the use of any unleaded fuels in SR Series ...