Using the pumps internal shut off mechanism, this prevents {TAIL ~ the fuel pump} from dispensing {HEAD ~ fuel} until the sensing unit within the apparatus is able to identify the fuel proposed to be added to the tank 
Using the pumps internal shut off mechanism , this prevents { TAIL ~ the fuel pump } from dispensing { HEAD ~ fuel } until the sensing unit within the apparatus is able to identify the fuel proposed to be added to the tank
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH