OctaviaVRS1980

Ok so I bought my Skoda Octavia 2011 vrs 2nd hand from a Skoda dealer in Melbourne before I emigrated in June 2016. A gamble but turned out great. She has been a wonderful member of the family going from 77k to 160k effortlessly. Apart from one coil pack Skoda replaced under warranty she has not missed a beat. Always used oil but within spec and thus was tested by the garage. I have always had some in the boot for peace of mind. However, In the last 3-4 months she has been drinking oil at quite a rate. It got as bad as not going for much more than 700-800km off one 900ml topup. I think one top up barely covered 500-600km. However, the car drives fine. A month or so ago it did smoke a little on hard revS but this has gone and I’ve given her a few 0-100kmh thrashes hot and cold to confirm it. No more smoke. Engine smooth, all power there. Having spoke to a local euro specialist Indy on the Coast, I decided to To swap the PCV valve. He confirmed that the plugs were oily when this got done. After a PCV valve change her last oil consumption was 800km for a 900ml top up. What am I to do? The Indy was thinking this could be one of the bad earlier TSI Engines he has seen many of. She has got to 163k and is due for 165k service soon and will need new front tyres before that. The only thing she might have missed in the service history is spark plugs - not done since 60k. The only other thing I can think of his since April I’ve worked from home and she has done a lot less kms. Certainly not getting 2-3 runs up the Bruce to Cabbo and back I was doing for work. But does get an occasional longer trip to city and the like. Options 1)Take it to the main dealer for things like compression tests and other tests? 2)Keep her, run her as normal and hope for the best. 3)Trade in What would you do if it was your car? No judgement I’m just seeking some views. 2 is the easiest and most likely.