Pan gasket, pump seal or detent/dipstick "o" rings likely culprits. Clean with carb cleaner or similar & see where it is coming from. If you change pan gasket, might as well change fluid/filter.
Better get it fixed right away
depends on the car, typically just the valve cover gasket though
leaking valve cover gasket.
how do you stop oil leaking from a 2000 sportster primary cover
If it is leaking inside the car, the heater core has failed.If it is leaking inside the car, the heater core has failed.
There are a lot of places, but most often leaks are caused by a bad valve cover gasket. It might be just on the firewall side of the engine.
Typically, if your car is leaking water it has to do with the air conditioning system. This simply usually means the condensation is leaking from the AC.
If coolant is leaking from a car it means that your radiator has a hole in it. If this is not fixed the car will over heat.
Leaking valve cover gasket.Leaking valve cover gasket.
I would suspect that is a Valve Cover gasket leaking.
depending on where the oil is leaking from. sump gasket? rocker cover gasket? hoses? castings?
If it is not actually over heating, then if the smell is outside the car, look for coolant leaks around the head and the thermostat cover. Inside the car could be a leaking heater coil.