Aluminum Corrosion | Cummins Filtration


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More and more engine manufacturers are using aluminium to reduce weight in cooling systems. But there is a price for weight reduction: Aluminium is the most sensitive material in the system, and corrosion is its biggest problem. Corrosion is not a question of age; corrosion attacks an engine as early as 2,000 hours or 400,000 km.

  • Oxygen in the cooling system reacts with metal parts

  • In the engine, oxidation = rust

  • Water pumps, radiators, thermostats and manifolds are affected

  • Radiators get blocked

  • Engine overheats = repair costs, downtime

  • Leaks appear