Why concess Eco Sport 2006 oil

I have an echo Sport 2006 I make its periodic oil changes in a timely manner its affinations, it brings climate and it has 120,000 km but lately I have noticed that the oil level lowers me the mechanic tells me that it has no leak and there is no trace that throws oil, I just made an approx. 600 km When I return I set 3 lts, ​​oil and three days later I scored that it lacked oil, what could be passing? Where does that oil go? There is no trace that fugue

Hello good afternoon, em for the year of your vehicle I would not consume those amounts of oil but the fault of seeing to be in the valve seals or the piston rings themselves, but that is easy to detect when you start the cold engine, fix if it throws blue smoke by the escape of being made to intervene the engine, lucky in the test.

I think that diagnosing premature wear would be very hurried, since it is a recent year of the year, those failures are generally after about ten years.
Unless a good stretch without acite is running, prior to the failure.
The most logical thing I can think of is that the PCV valve is damaged and is aya open and is sucking the oil directly from the aim lid. Check the hose that goes to the body of acceleration, it would be impregnated with oil.
(I spend something similar with a voyager, the oil was completely emptied on the road)

Look does not smoke the engine or cold or hot or accelerating it, which if my friend Bern says, they changed the hose that goes from the multiple of admission to the PCV valve that sucks it was breto, and the car accelerated alone and did not find him, disarmed the admission and found the hose, will it be that the valve is possibly damaged?

If friend in my opinion is most likely that the PVC valve is damaged and the oil is consuming by the admission of the same engine ... Check and clean your admission multiple ... and change the PCV valve ... I hope to help you with my humble comments ... You warn how it was ... Greetings ... Jorge.