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Wynn’s® Professional Formula Petrol Inject-A-Clean has been developed using the latest cleaning & lubricating technology for direct injection systems while still being compatible with traditional petrol injection systems. Wynn’s® Petrol Inject-A-Clean stops water & petrol mixing, preventing water from entering the high pressure system. The Wynn’s® Petrol Inject-A-Clean detergents quickly & safely break down the deposits & the dispersants hold the now microscopic deposits in suspension & removes them via the combustion process. It cleans the injectors & contains a DCA (Deposit Control Additive) to help prevent the formation of new deposits. Petrol Inject-A-Clean cleans & protects Direct Petrol injection systems such as FSI, GDI, CGI, SIDI, IDE, against excessive fouling, wear & water contamination damage.