Thread: "Calibre" 10W 30 oil
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Old 05-10-2008, 04:17 PM   #26
mik
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Location: Melb north
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i`m no oil bloke but it it was my understanding the oil turning black means the detergent in the oil is doing its job, like big diesels use high detergent oil, some one will correct me i`m sure .
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