Exact position unknown, but somewhere between Los Palacios y Villafranca (A-362)
From
http://www.elcorreoweb.es/sevilla/provincia/096990/cepsa/inaugura/servicio/autogas/utreraUtrera is again a pioneer. The group Cepsa city chooses to install the first section to supply LPG for vehicles sold in Spain. It is located in the storage facilities of its distributor of butane, Zonagas, provides Utrera the road connecting with Los Palacios y Villafranca (A-362)