The one that I borrowed looked like a metal oil can. Filled it with oil screwed a hose into the pressure sender and used compressed air to force the oil into the engine. I too was told, from a reputable mechanic, to do this before starting the motor. I have never done this before with chevy engines I have rebuilt, but I did fill their oil pumps with grease so that they where not dry on start up and be able to pull oil up to the pump. Since I couldn't really get to the inside of the oil pump on the Vehicross I figured I'd take the advice.