F25 bigfoot oil low

[captainQ]

Hi my 2002 F25 bigfoot has gray oil leaking from under the chaps onto the cavitation plate, black oil residue at the exhaust port and while cleaning it up and moving the power trim black fuel was dripping out as well.

I had just changed the oil, trolled for 8 hours and had lost 1/2 qt oil.

Any ideas ?

Thanks