How much DEI Radiator Relief should I use?

The manufacturer recommends using 1 ounce of Radiator Relief per quart of coolant. Ensure the product cycles and mixes thoroughly with your existing coolant for effectiveness.

What materials is this coolant additive safe for?

DEI Radiator Relief is safe for use with all types of radiator materials, including cast iron, copper, brass, and aluminum. It is also compatible with all antifreeze mixtures and other coolant additives.

Will this fix an overheating problem caused by a bad thermostat?

No, Radiator Relief is not intended to fix a malfunctioning thermostat or other cooling system issues. It is a coolant additive that helps improve heat transfer and protect against corrosion and foaming.

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Specifications

Brand: DEI
Part #: 40104
UPC: 607078401045

DEI Radiator Relief 32 oz.

Name: DEI Radiator Relief 32 oz.
Brand: DEI
SKU: dei-dei-radiator-relief-32-oz-t14-519338
Price: 17.73 USD
Availability: BackOrder

$17.73

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

DEI Radiator Relief 32 oz. coolant additive. Reduces engine temps up to 30°F and prevents corrosion.

Key Features

One 32 oz bottle of DEI Radiator Relief coolant additive.
Reduces engine coolant temperatures by up to 30 degrees Fahrenheit.
Includes an anti-foaming agent to prevent excessive foam buildup.
Acts as a corrosion inhibitor to protect cooling system components.
Compatible with all types of antifreeze and coolant additives.
Safe for use with aluminum, copper, brass, and cast iron radiators.

This is a universal coolant additive and is not specific to any particular vehicle make or model.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

In this bottle, you get 32 ounces of DEI Radiator Relief, a coolant additive designed to help your engine run cooler. It's formulated to reduce coolant temperatures by up to 30 degrees Fahrenheit, which can help prevent overheating, especially during demanding use. This additive works by helping your radiator transfer heat more efficiently.

Radiator Relief is more than just a coolant booster; it also acts as a corrosion inhibitor and an anti-foaming agent. It helps balance the pH levels in your cooling system, which can fluctuate over time and lead to damage. It's also designed to reduce pre-existing mineral deposits and scale build-up within the radiator. This additive is safe for use with all types of radiator materials, including aluminum, and is compatible with all antifreeze mixtures and other coolant additives, so you don't have to worry about it reacting negatively with what's already in your system.

For best results, the manufacturer recommends using 1 ounce of Radiator Relief per quart of coolant. Keep in mind that this additive needs to cycle and mix with your existing coolant to become effective, and it's not a fix for a malfunctioning thermostat or other cooling system problems.