I just purchased a 2006 Bayliner with 4.3 IB. At the front of the engine just beside the oil filter there is a small white plastic container (1 L size)with oil in it with referance to oil monitor. It is just below the minimum line and would like to fill it accorindgly but not sure if it is for the power steering or what. So I am wondering what it is and what kind of oil to put in it. Also what type of oil goes in the the power tilt trim? I have ordered an owners manul but don't have one yet.