DEI Radiator Relief Coolant Additive - 16oz (40200)

DEI Radiator Relief (40200) is a high-performance coolant additive designed to reduce engine operating temperatures by up to 30°F. By improving heat transfer efficiency through the radiator, this formula helps prevent overheating during extreme use and reduces the mechanical wear associated with high thermal loads. It is formulated to be compatible with all water-cooled engines and works with all types of anti-freeze mixtures and alloys, including aluminum, cast iron, copper, and brass.

Beyond temperature control, Radiator Relief acts as a comprehensive system treatment. It includes a corrosion inhibitor to balance acidic effects and prevent electrolytic damage, along with an anti-foaming agent to maintain consistent cooling performance. The 100% biodegradable, non-toxic formula also helps reduce pre-existing scale and mineral deposits while maintaining stable pH levels to prevent core damage over time.

• Reduces engine operating temperatures by up to 30°F
• Prevents electrolytic and chemical corrosion
• Includes anti-foaming agents and scale inhibitors
• Maintains stable pH levels to protect radiator cores
• Compatible with all anti-freeze and coolant additives
• Safe for all engine alloys (Aluminum, Cast Iron, Copper, Brass)
• 100% biodegradable, non-corrosive, and non-toxic
• Recommended dosage: 1 oz per quart of coolant
• Manufacturer Part Number: 40200