In my 1993 Ford F-150, I had oil in the breather due to a blown head gasket.
Normally caused by excessive crankcase pressure. A blocked breather or bad piston rings are the likely causes.
your oil resevoir is to full
pressure in the sump caused by engine breather pipe being restricted or blocked is one cause for oil coming up through the dipstick hole
The oil might be getting into the air breather of your 2000 S10 pickup if there is a leaky gasket on the engine. It could also indicate the air breather housing is cracked.
worn rings , low compression , cylinder bore taper, cracked pistons , cracked cylinder heads between head gaskets, could be many things causing oil to many things breather
always with the bike upright checking on the stand causes it to be over full This then causes the engine breather vent tube inside the oil bag to be under oil then it will blow oil out of gaskets and all vents even push oil cap off tank while riding
If you have a 1.8T, the breather for the crankcase is below the intake manifold. The poor design of the engine causes oil to be sucked up through the breather and sit in the breather assembly then causing it to rot and fail. When you aredriving slow, the vapors from your crankcase waft in through the cabin air intake. you need to purchase a breather T fitting, it is expensive -about 45 dollars from the dealer, and install it. Look below the intake on the drivers side of the engine for the faulty part.
Engine oil coming from breather pipe
Check your oil, if it looks the same you may have a blown head gasket. If your oil looks okay you may just have had some water get in it from somewhere else. I found that i had milky residue in my breather and the problem ended up being the carb was forcing air back down the breather tube. When air is forced into a small space it compresses and moisturises. The solution was to take off the breather tube and put a cap or separate breather filter on it.
Engine is severely worn.
Breather pluged.