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Mineral or Synthetic
There's something about BP and my engine. I used previously Valvoline partial blend and the engine was silent. Same with the VTwin. I'll just go back to Mobil1. I've been using it for years with my BMWs. The VTwin however is expensive oil. And these Porsche BMW cars love 12 bottles of it too.
Last edited by Koizumi; 08-18-2015 at 11:38 AM..
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