If your engine is really burning that oil there is no way your nose can miss it!

My engine was in a similar situation and it was leaking from everywhere and the all the bottom of the engine was dripping oil!

Also as an engineer point of view, if your car is using that much oil you should stop using it until you clear the problem, if the oil that much is going in the engine you will have catalyst, O2 sensor problems etc.

Regards