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Thanks for the thoughts...unfortunatley not that helpfull as:-
1. new turbo
2. new turbo drain line
3. after 3 attempts the mechanics managed to actually get the drain line to hold oil and it now definately doesnt leak
4. I have overhauled the PCV system so many times im bored - and so is it including replacing all the 'replacement' componants on the basis maybe i had got a duff new componant - plus i get -1psi at 2500 rpm measured at the dip stick..interestingly its almost as thought the PCV was workign too well!
5. if its burning the oil (and a sizable amount of oil) why doesnt it smoke?
6. looked at snake oil...but which one...none of them here claim to be able to free stuck rings .....
7. I am going to try 10w40 out of desperation and fro ma post on turbobricks where a guy was reporting oil usage in the litre per 300 miles range until he STOPPED using sythetic and moved up a weight at which point the oil usage disapeared!
8. If that doesnt work I am going to go and buy a puegeot as my previous experience of that engine is it just doesnt go wrong and uses no oil at 300,000 miles let alone 130k...i think my brother might join me my experiences are making him decidely nervous about his 740....
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