you have to have KOH (potasium hydroxide) or NaOH (sadium hydroxide), sulfuric acid 93+% pure, and the oil. I get my used oil from a friend who w\owns 2 mexican food resturants.
right now costing me time, electricty, and for money $0.94 a gallon
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2006 Quad Cab-Short bed-4X4-CTD-SLT-Silver-Auto-3.73-Big Horn Pkg-AeroTurbine 4040XL-MBRP 5" Dual Wall Angle Cut Tip see garage for pics-Blue Cool Hose Kit-Amsoil 4510-ISSPRO Turbo Timer/Monitor-285 BFG AT'S-BMK 11 By Pass-Draw Tite Gooseneck Hitch-DiPricol Optix Gauges Boost,EGT,Trans Temp 
Wife:2005 VW Passat TDI
Work: 2004 Pierce Contender with 8.3L Cummins---Fire Truck