Blotter Spot Test Oil Analysis:VOA Helix HX7 5W30, 16,286 km blotter Shell Helix Ultra 5W40
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 Feb 8 2017, 12:03 PM
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92 posts Joined: Jan 2010  
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Last time my automotive trainer told me
If the engine oil easily change to black colour The engine oil had better cleaning agent than other engine oil. |
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