To help prevent electrolysis-related radiator failures:

• Regularly test for stray electrical voltage in the cooling system (anything above approximately 0.3 volts DC should be investigated).
• Maintain proper engine and chassis grounding.
• Use the manufacturer-recommended coolant and maintain the correct coolant chemistry.
• Replace coolant at the recommended service intervals and ensure the cooling system is properly maintained.

Early detection and correction of electrolysis can significantly extend radiator life, reduce repair costs, and help keep heavy-duty trucks operating reliably.

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