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Discussion Starter · #1 ·
Any of you guys running German Castrol 0W30.......about due my first oil change and Auto Zone had it on sale today for $6.50 per quart, so I bought 7 quarts......shows good results on quite a few sites however, have not seen any results on Subaru's or Boxer engines......
 

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That's an okay price. I use that oil in STi and whatever synthetic is on sale for the Tribeca. The non-turbo Subaru engines are a lot easier on the oil then the turbo models.
 

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Discussion Starter · #3 ·
Do you think using GC is overkill for the Tribeca......not a lot of difference in total money at $6.50 for the GC vs $6.00 for regular U.S. Castrol Syntec 5w30????
 

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The GC is superior but if you are not extending your drain interval you are just wasting money. Here in Canada GC is about $10 per litre, while I can get 5L of Penzoil Platinum for about $30. So the GC is saved for the STi; after 6k KM you can readlly tell how much harder the turbo is on the oil compared to the Beca.
 
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