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If you have a 1.8T or 2.0T passat, you should ONLY use fully synthetic oil. The turbo is designed for very tight tolerances and must be constantly lubricated to avoid premature failure. Synthetic oil resists thermal breakdown occurring in the extremely hot engine environment better than regular or blended oils. It will cost you about double the price of a regular oil change, but a new turbo can cost you up to $4K installed by your local dealer. Been there....done that.

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13y ago

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