Where is the leak originating from? Clarify location, whether it's a flange, hole in the piping, etc.
they leak oil from the oil pump on the front of the engine
It would be best to get a new exhaust gasket.
Fuel leak.
oil or tranny leak and dripping on exhaust
Doesn't matter what type of vehicle, this indicates an exhaust leak and an oil leak. The burnt oil and the exhaust, get pulled into the cowl which is where the air for the interior comes from! Not very healthy...
External or internal leak. If there is no apparent external leak and you see white smoke then you have a blown head gasket.
Freeze Out plug, cracked block or waterjacket.
That isn't much consumption.. If it buggs you take it to a garage and have them give you an estimate.
Could be a worn out waterpump.
The oil leak is coming from the valve cover gasket and leaking onto the exhaust manifold, the rubber valve cover gaskets get hard from the engine heat and start to leak, you will have to replace the rubber valve cover gaskets to stop the oil leak
most likely worn output shaft bushing worn
2 most obvious signs of exhaust leak are noise and smell of exhaust fumes