I have a 95 Johnson 130 and the power trim/tile needs to be topped off (I hear air in the system).<br /> Do you just fill it from the top, till it is full? Or is there a screw at the bottem, like the lower unit, where I need to fill the unit?<br /> What fluid should I use? Reading the comments in this forum I see that there are various types of fluids used. Anything from 10w-40 motor oil to tranny fluid. Which is right for me? Thanks