Re: HELP!! Alfa 146 TS burning way too much oil
Are you using 20k selenia or racing selenia? The racing oil is thinner, consumption goes up.
The piston rings are very soft on the TS, and is over fuelled to help keep them lubed. They are soft to reduce friction, an old racing technique. You should find that a small amount of oil will creep past the rings and get burnt.
Or like you say, could be worn valve seal.
You could try a compression test on each cyl, make sure they are all within tolerance.