2011 Series 2 SV6 oil usage

I have found the reports on the oil usage of the Commodore V6 interesting as I am experiencing the same issue on my 2011 Series 2 SV6. I've recently had what was supposedly a new motor fitted due to a high excessive oil consumption after eight long months of battling with Holden and telling them that there was an issue. I had to write in because the motor that was fitted wasn't a brand new one like Holden told me, in fact they just changed the engine block. Much to my dissatisfaction they never actually fixed the issue. I could say that it seems that there maybe a few issues with this motor that Holden are not aware of and I'm fighting to have my money refunded to me. This is not what I paid for. My advice to others is to take the fight to Holden because there are lots of others in the same situation.