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Re: Oil Sludge question
Another product called "polyalphaolefin" works very well for removing sludge at a relatively controlled pace, and quite thoroughly and permanently. You'll find it is the primary ingredient in true synthetic-base engine oils, such as Royal Purple, Amsoil, Mobil 1, Red Line, and European imported Castrol Syntec. You might also find it is NOT in domestic Castrol Syntec, neither Pennzoil nor Quaker State "synthetics," and their clones which are Group III "synthetic" oils.
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