Soooo just got back from the garage, as I took it in for them to get up on a ramp and see if I have an oil leak.
Following the excess usage mentioned above.
Nothing out of the ordinary seems to be wrong though
Engine bay is dry, no oil leaks in the bay
Disconnected boost pipe, and nothing out of the ordinary there either
Doesn't appear to be any excess oil residue in the exhaust tips either
Breathing a bit heavy when quickly unscrewed oil cap with it ticking over
But nothing to worry about
Disconnected engine breather pipe, which had a little bit of oil there, but again, nothing excessive.
Sooo bit lost on what the issue is to be honest.
Going to go back Tuesday night, tracking how many miles I've done
Put 2 litres of oil in, so will see how much is left when I go back Tuesday.
Anyone got any other suggestions to check?