Thread: castrol magnatec 10w 40,good or a bad oil
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Old 06 April 2010, 11:28 AM
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scooby1929
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Subaru dealers probably use what the book states semi synthetic 5W-30.

For a Subaru Sport castrol magnatec is perfect

For a Turbo I would use millers or silkolene 5W 40

If I was doing trackdays I would use Millers 10W 60
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