Cat conv OR Head Gasket failure.
Does it smell foul ?
Most likely Head Gasket Leak pending failure
You have too much oil in your gas, that's why oil and gas is coming out your exhaust.
Serious trouble. It usually means a broken oil (piston) ring. Another possibility is that your exhaust valve seals are bad/gone or valve guide is worn in excess. Another possibility is it is condensation coming out of exhaust mixed with black residue from exhaust and only looks like oil.
Why is smoke coming out of my 96 s10 oil fill and exaust blowing grey smoke
your exhaust may be jammed
A southwest wind is coming from the southwest.
there is no water mixed with the oil but have antifreeze coming out of the exhaust
no
The reference point is FROM that direction AND that is the way it is blowing.
It could be condensation from hot exhaust gases on the cool exhaust pipe.
A north wind is coming from the north, blowing in a southward direction.
NO
no