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DEI Radiator Relief Diesels - 16 oz.
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Radiator ReliefÂ(TM) for Diesels supercharges your radiator by transferring heat more efficiently through the radiator. Similar to the original formula...
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Radiator ReliefÂ(TM) for Diesels supercharges your radiator by transferring heat more efficiently through the radiator. Similar to the original formula this proven coolant additive will reduce your operating temperature up to 30°F degrees and reduce engine wear that occurs during extreme heat. NEW Radiator Relief for Diesels is also formulated with a corrosion inhibitor that reduces mineral deposits. This is the first additive that maintains pH levels that otherwise fluctuate over time resulting in core damage.
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Shipping Coverage
We currently ship within the United States only. Unfortunately, we do not offer international shipping at this time.
Orders are typically processed within 1–2 business days. Orders placed on weekends or holidays will be processed the next business day.
Returns & Exchanges
We accept returns within 30 days of delivery.
- To be eligible for a return:
- The item must be unused, uninstalled, and in its original packaging.
- Products must be in resellable condition.