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As it soaks into metal, zMAX Micro-lubricant helps disperse carbon build-up. This helps zMAX provide the following benefits: Engine (12 oz.) zMAX helps restore combustion valve and piston ring sealing resulting in a smoother running engine and more power. For use in gasoline or diesel engines. Manual And Automatic Transmissions (6 oz.) zMAX can help clean varnish in valve bodies for smoother shifting. Fuel System (12 oz.) zMAX in the fuel tank helps lubricate injector pumps, clean injector nozzles, clean carbon residue off valves and pistons restoring compression. For use in gasoline or diesel fuel systems. Power Steering (2 oz.)
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