Having to add a lot of oil... a litre every 300 kms... that's a big improvement though, it was a litre every 70km before the rebuild.
This has been going on for a year... I have replaced the valve stem seals, turbo, full short block rebuild, breather system has been
sorted, no leaks. I have suspected that it's over fuelling for a long time but been told by two tuners that it's not rich. The thing is
though that the oil rings were rooted both times the tune was checked, so I think that the amount of oil in the mix corrupted the
readings.
Third time is a charm... I just hope I haven't screwed the rings and/or bores already.