Keep your engine coll and the cooling system in pristine condition
Comprehensive Guide to Cooling System Care
Red Line offers a small family of cooling products focused on performance and protection:
With consistent application of Red Line’s cooling treatments and diligent mechanical checks, your vehicle will run cooler, cleaner, and more reliably—whether on the daily commute or the racetrack.

Red Line’s Water Wetter technology is a stand‑alone surfactant additive that improves heat transfer and reduces vapor blanketing in hot spots.
• Improved heat transfer and lower operating temperatures (Red Line and independent tests report up to a noticeable reduction, often claimed as “up to 10 °C” in specific conditions).
• Cavitation, corrosion and erosion protection for radiators, water pumps and engine cooling passages.
• Water Wetter can be added to existing coolant systems to boost thermal performance without changing antifreeze chemistry.
Independent tests and community feedback
• A controlled bench/track test showed measurable cooling improvements when switching from OE coolant to Red Line SuperCool, and further gains when combined with high‑performance radiators; test methodology included thermocouples and controlled ambient conditions.
• Practical writeups and magazine reviews of Water Wetter report consistent but meaningful temperature reductions in everyday driving and track use, with several hands‑on testers recommending it for classic cars and marginal cooling systems.
• Pros: often reduces peak and running temps; easy to use (premix or concentrate); provides additional cavitation/corrosion protection; compatible with performance upgrades when used as directed.
Practical recommendation
• If you have an older car, marginal cooling system, or run on track/haul heavy loads, consider SuperCool (premix for convenience, concentrate for tailoring freeze/boil protection). Use Water Wetter where you want extra heat‑transfer performance without changing coolant chemistry but view it as a performance enhancer rather than a cure for a failing cooling system.
This product does not contain antifreeze and if you have an air conditioner anti-freeze should be added to the cooling system.

• Always start with a clean, flushed cooling system and follow Red Line’s mixing and service instructions; measure before/after temps if you want objective evidence of benefit.
COOLING SYSTEM MAINTENANCE
Maintaining your cooling system ensures reliable engine temperatures, prevents corrosion, and extends component life. Red Line offers a suite of treatments and additives that clean, protect, and optimize heat transfer in gasoline, diesel, and performance applications.
Regular Inspection & Preparation
Park on level ground, allowing engine to cool fully, and relieve any residual pressure by opening the radiator cap.
Visually inspect radiator, hoses, heater core lines, and overflow bottle for:
Cracks, bulges, or soft spots in hoses
Corrosion on radiator fins or housing
Coolant level below the “MIN” mark
Signs of external leaks (puddles, white residue)
Check belt condition and tension for water pump drive.
Heat-Transfer Optimization
Add these after the system is filled with the correct antifreeze/water ratio but before running the engine.
Run engine to operating temperature to ensure thorough mixing.
Coolant Selection & Protection
Base antifreeze: Use an OAT or HOAT long-life antifreeze compatible with your vehicle’s OEM specification.
Corrosion inhibitors: Red Line treatments supplement OEM inhibitors, protecting aluminum, brass, copper, iron, and solder.
Water Pump & Seal Care
Inspect impeller and bearing play when the accessory belt is off.
After every coolant change, add Red Line Water Wetter to lubricate the mechanical seal and reduce seal wear.
Listen for seal squeaks; if present, ShockProof Super Lube (oil-based) can be applied during belt service to pulleys and seals.
Radiator & Hose Maintenance
Radiator Fins: Clean external debris with a soft-bristled brush or low-pressure water.
Hose Ends & Clamps: Check for oil or coolant deposits; tighten or replace clamps as needed.
Overflow Bottle: Replace brittle or discolored bottles; always maintain correct fill level.
Winterization & Boil-Over Protection
For climates reaching below –5 °C ensure a 50/50 mix of antifreeze/water at the minimum freeze point.
In high-stress or track environments, increase antifreeze concentration up to 60% to raise boil-over threshold.
Always supplement with Water Wetter or Supercool to suppress micro-bubbles and hotspots.
Maintenance Schedule
Every Oil Change (10000 KMS):
Check coolant level and concentration.
Top-off with anti-freeze or distilled water as required.
Add Water Wetter if last treatment is over 15,000 KMS old.
Inspect hoses, belts, and clamps.
With consistent application of Red Line’s cooling treatments and diligent mechanical checks, your vehicle will run cooler, cleaner, and more reliably—whether on the daily commute or the racetrack.