Oil leakage

Hello friends, I would like a help, I have an ana nissan truck d 21 year 97, the problem that you have oil filtration, take out the engine lid at the bottom and also the superior rreforce the packing with red silicone and the filtration persists if someone could collaborate me I will be very grateful

hello.
An oil leak that comes from the top can come from the valve cover, from the distributor, and distribution stamps. These leaks generally stain the engine on the sides. If you have an oil leak between motor and gearbox and leave a stain on the floor in that area, it can be the packet of the carter or the cranksian rear check and if it is in the anterior part of the engine can come from the front oil retain from the crankshaft.
luck.......