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Radiator Conditioners & Protectants

25 radiator conditioners & protectants from Garage-Pro, Upgrade Your Auto, AM Autoparts and more.

Recommended Radiator Conditioners & Protectants

Performance Radiator
+Premixed 50/50 coolant ready to add without dilution
+One gallon capacity for topping off or refilling
+Labeled for use in all makes and models
No price recorded yet.
Performance Radiator
+Four-pack gives four gallons of ready-mixed 50/50 coolant
+Ready-mixed 50/50 formula needs no dilution
+Listed for use in all makes and models
No price recorded yet.
Prothane
+Urethane radiator isolators for small block engines
+Black urethane construction for cushioning radiator mounts
No price recorded yet.
Valvoline
+Water pump lube and protectant in a 14.5 oz container
+Designed to lubricate and protect water pump components
No price recorded yet.

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.