Design Engineering (DEI) 40200 Radiator Relief ™ COOLANT SYSTEM PERF IMPROVER
$7.50
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Design Engineering (DEI) 40200 Radiator Relief ™ COOLANT SYSTEM PERF IMPROVER
$7.50
The Design Engineering Radiator Relief ™ Coolant System Perf Improver (DEI 40200) is a 16 ounce engine coolant additive specifically designed to improve the performance of radiator relief systems. Made by DESIGN ENG, this product is compatible with anti-freeze and water solutions, making it ideal for everyday vehicle use. It is important to note that this coolant system perf improver cannot be used on race tracks, and it carries a California Prop 65 Warning due to the potential health risks associated with its use.