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Old 01-05-2013, 08:54 PM
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csmeance csmeance is offline
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From the data I could fine online (which isn't easily accessible which is illegal of Duralube), the stuff is a mixture of kerosene and Aliphatic naptha which dissolves rubber.

I'd stay far away from this stuff since 1. its a waste of money, and 2. can damage rubber in the fuel system. Stick with fuel cleaners that are based off of polyether amines that are found in reputable products like Chevron Techron, BMW Fuel Cleaner and Redline SI-1
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