True: You should oil your valves everytime you play your instrument., Valves use numbers to match their casing, Valves need 2-3 drops of oil per valve, You can clean your mouthpiece with warm, soapy water, It takes more steps to oil a rotary valve than a piston valve, False: You can use olive oil for your valves, Valves use letters to line up in their casing, Valves need half a bottle of oil each before you start playing, Its ok to boil your mouthpiece to kill germs, All brass instruments have loose springs in the bottom of their valves,

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