186.148 is one of those engines that always seems to be changing owners and operators. According to www.railcolor.net it was working for Hamburg based HSL Logistik when it passed Oberwesel with a southbound tank train on the afternoon of 17 August 2013. A closer inspection reveals traces of a previous operator, Captrain, in the dirt on the side and at the end of 2013 it transferred to NS Hispeed.