History: I bought the boat used about 5 months ago so I have no idea of the PM that has been done. With that said since I have owned this boat I have cleaned, checked , or changed: air compressor filter at the block, checked t-stats (also added merc monitor), spark plugs, oil line entering the motor was pinched in between the throttle and bracket, greased/oiled all locations with appropiate grease/oil, water pump and foot oil. When I changed the foot oil, I got maybe a 1/2 quart out and it was milky. I know that some could be moisture in the foot but this was a little too much. So I am gonna run it for a month or two and change it again. If it is milky this time, I will be calling you Mr. Don for an appointment. 07 Merc 250 pro xs s/n 1B446096. I don't know if it would be considered warranty work or not, I do have about 1.5 years left on the warranty.