Red Line WaterWetter Super Coolant Additive – 355ml • 80234

Red Line 80234 WaterWetter® Super Coolant Additive - 355ml

Red Line cooling-system additive for passenger-car and light-truck cooling systems where a compatible coolant additive is required, as detailed in the compatibility table.

WaterWetter® is designed to improve heat transfer through the cooling system by reducing the bubbles and vapour barrier that can form between the coolant and hot metal surfaces. This can help improve cooling-system efficiency and reduce cylinder-head temperature under demanding operating conditions.

The formula also provides rust and corrosion protection and can be used with new or existing antifreeze, including long-life and DEX-COOL® formulations. It is compatible with ethylene-glycol and propylene-glycol cooling systems. One 355ml bottle treats approximately 13.2 to 15.9 litres in most passenger cars and light trucks.

WaterWetter® is particularly useful when servicing a cooling system, improving heat-transfer performance or preparing a vehicle for demanding road, track or motorsport use. It contains no ethylene glycol and should be treated as a cooling-system additive rather than as antifreeze itself.

• Product type: Cooling-system / coolant additive
• Primary use: Improve heat transfer and provide corrosion protection
• Location / system: Engine cooling system
• Brand: Red Line Synthetic Oil
• Product reference / SKU: 80234
• Container size: 355ml / 12oz
• Treatment quantity: One bottle treats approximately 13.2 to 15.9 litres in most passenger cars and light trucks
• Compatibility: Suitable with new or used antifreeze, including long-life and DEX-COOL® formulations
• Coolant compatibility: Ethylene-glycol and propylene-glycol systems
• Corrosion testing: Satisfies ASTM D2570 and ASTM D1384 corrosion tests for glycol-based antifreezes
• Ethylene glycol: None contained in WaterWetter® itself
• Application note: Cooling-system additive; not an antifreeze/coolant replacement

Fitment advice: WaterWetter® is application-based rather than vehicle-specific. Use it in a suitable automotive cooling system at the recommended treatment rate. For imported, modified or previously repaired cars, matching the required coolant specification and existing cooling-system service data is recommended.

Other items to consider: When servicing the cooling system, you may also want to consider purchasing coolant or antifreeze, a replacement radiator cap, thermostat, cooling hoses, hose clips, drain-plug seals and other cooling-system service components as required.

Useful tools / consumables: Drain pan, funnel or filling funnel, measuring container, gloves, workshop towels and suitable coolant or distilled/deionised water where required for the chosen cooling-system mixture.

Difficulty guide: DIY Difficulty: Easy to Moderate. Adding WaterWetter® itself is straightforward, but draining, refilling and correctly bleeding a complete cooling system requires suitable tools and care to avoid trapped air.

Why Red Line? Red Line Synthetic Oil is known for high-performance lubricants, fluids and additives developed for demanding road, track and motorsport use. Red Line products are chosen by enthusiasts and workshops for their focus on protection, thermal stability, shift quality, friction control and application-specific performance.

What’s in the bottle: One 355ml / 12oz bottle of Red Line WaterWetter® Super Coolant Additive.

Service notes: Add to a suitable, cool cooling system using the recommended treatment rate. One bottle is intended to treat approximately 13.2 to 15.9 litres in most passenger cars and light trucks. Smaller systems require proportionally less product. Follow normal cooling-system filling and bleeding procedures and never open a pressurised cooling system while hot.