Royal Purple
Purple Ice Additive - Cooling System Optimizer & Conditioner- 355 mL | ROY21600
Royal Purple 21600 Purple Ice is a high-performance coolant conditioner and radiator treatment engineered to lower engine and coolant temperatures, reduce corrosion, and extend the life of your cooling system. Whether you’re on the street or the track, Purple Ice improves heat transfer, cuts down on hot-spots in your engine, and helps your water pump, radiator, and hoses run cooler and longer. Safe for use with water-only or antifreeze/water blends — it’s the simple add-on that boosts cooling system reliability and performance all year round.
- Lowers coolant temperatures — reduces surface tension, allowing quicker heat transfer and helping keep engine temps down under load.
- Prevents corrosion & extends component life — acts as a 2-in-1 corrosion inhibitor and conditioner, protecting radiator internals, heater cores, and water pump seals.
- Reduces engine hot-spots & overheating risk — more consistent cooling throughout the system helps lower the chance of overheating or detonation under heavy load or high ambient temperatures.
- Improves coolant flow & heat exchange — helps coolant flow more efficiently, which can lead to slightly better performance and smoother engine running, especially in performance or high-output engines.
- Compatible with all common coolant types — works with water-only or water/antifreeze mixtures, including OEM and extended-life antifreezes, making it versatile for many cars and trucks.
- Simple to use — just add the recommended amount to the cooling system; no flushing or special equipment required.
| Brand | Royal Purple |
|---|---|
| Product Dimensions | 19.05 x 2.90 x 9.53 inches |
| Manufacturer Part Number | 21600 |