Insait bilong wanpela tanka trak em i wanpela 'elliptical' o 'trapezoidal' silinda, we ol i wokim long ol gutpela ain plet. Dispela em i wanpela introdaksen long ol tanka:
1. Tok i go pas: Ol i save kolim tu olsem ol 'mobile refueling trucks', ol 'computerized tax-controlled refueling trucks', ol oil tenka, ol oil loding trak, ol oil trenspot trak, ol oil haula, ol oil trenspot trak, na ol edible oil trenspot trak, ol i save yusim long karim na putim ol samting bilong petrolium (olsem disel, oil, ol gris, na kolta bilong ston kol). I dipen long aplikesen na envairomen bilong wok, ol i gat kain kain wok bilong pulimapim bensin o oil trenspot, olsem pulim oil, pamim oil, na kain kain wok bilong givim oil.
2. Ol Sefti Prekosen: Long stopim pawa bilong yu yet, ol opereta i mas werim ol klos bilong wok we i no save senis na ol su we i no save senis taim yu wok. Elektrostatik graun em i bikpela samting. Ol eksiden we i kamap long "reloading" tu ol i mas tingim gut. Ol i mas rausim olgeta bensin insait long tenk pastaim long operesen, na ol operesen i mas kamap stret bihainim ol lo bilong operesen. Ol i mas yusim ol ikwipmen we i inapim ol teknikel spesifikesen na sefti rikwaemen.