The silicated OAT corrosion inhibitor is compatible with the silicate-containing antifreezes used as standard by most UK vendors, and provides 5-year protection. G13 Spec was launched by the Volkswagen Group in 2013, and is now used in Audi, Bentley, Bugatti, Lamborghini, MAN, Porsche, Scania, SEAT, Škoda and VW vehicles.
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