In article >,
says...
>It's daft to use Dino oil in a turbo anyway.

Not really. I had a turbo Dodge 2.2 motor that was only fed regular dino oil.
I would use what ever brand name oil and brand name filter was on sale. I
changed the oil every 3k miles without fail. I sold the car with over 150k
miles on it and the motor was still going strong.
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Alex