Where can I find Midgrade Gasoline in Seon?

Midgrade Gasoline can also be found in these cities:

Baden Bremgarten Brugg Däniken Geuensee Gränichen Hunzenschwil Killwangen Muri Nebikon Oftringen Pfaffnau Unterentfelden Weiningen Wikon Würenlos

You can also find this in Seon:

Tanks Regular Diesel