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RED LINE WaterWetter Super Coolant Additive

RED LINE WaterWetter Super Coolant Additive


RED LINE WaterWetter Special S - 355ml Bottle

355ml Bottle


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RED LINE WaterWetter Super Coolant Additive

Important: RED LINE WaterWetter is a Coolant ADDITIVE and DOES NOT contain any Antifreeze. It's main purpose is to reduce Engine Running Temperatures and raise existing Antifreeze / Coolant boiling points.

Unique agent for cooling systems that doubles the wetting ability of water.

Rust and corrosion protection allows for use of straight water in racing or reduced antifreeze levels in warm climates.

Reduces or eliminates bubbles or vapor barrier that form on hot metal surfaces to reduce coolant temperatures by up to 20°

Red Line WaterWetter is designed to provide improved metal wetting and excellent corrosion inhibition when added to plain water or a glycol coolant.

Red Line WaterWetter will provide the proper corrosion inhibition for all common cooling system metals, including aluminum, cast iron, steel, copper, brass, and lead. Water has twice the heat transfer capability when compared to 50% glycol Antifreeze / Coolant in water. Most passenger automobiles have a cooling system designed to reject sufficient heat under normal operating conditions using a 50/50 glycol solution in water. However, in racing applications, the use of water and WaterWetter will enable the use of smaller radiator systems, which means less frontal drag, and it will also reduce cylinder head temperatures, even when compared to water alone, which means more spark advance may be used to improve engine torque.

Type Dilution:
Reduce coolant temperatures by up to 20°
1 ounce (30ml) or 3-4 capfuls will treat 1 Quart (0.94 Litres)

View our online Antifreeze / Coolant Explained document, or download the PDF and find great information on what makes a good Antifreeze / Coolant and what all those specifications actually mean.

Shop for all our Antifreeze / Coolant


  • Doubles the wetting ability of water
  • Improves heat transfer
  • Reduces cylinder head temperatures
  • May allow more spark advance for increased torque
  • Reduces rust, corrosion and electrolysis
  • Provides long term corrosion protection
  • Cleans and lubricates water pump seals
  • Prevents foaming
  • Reduces cavitation corrosion
  • Complexes with hard water to reduce scale

PDF Downloads:

Download the Technical PDFDownload the Safety PDF

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We say...

"Good for high ambient temps and very popular with racers and track go-ers for extra coolant."