The Best Water Wetter Coolant Additive of 2021 – Reviewed and Top Rated

2,203 Reviews Scanned

Rank No. #1
Red Line Water Wetter 12 oz (Pack of 2)
  • Convenient, pre-mixed coolant for motorcycles, ATVs, karts, etc.-pour and go
  • Blended with purified, deionized water and proper WaterWetter percentage
  • Reduces rust, corrosion and electrolysis, cleans and lubricates water pump seals
  • Compatible with all antifreeze and coolant
  • Satisfies ASTM D2570 and ASTM D1384 corrosion tests for glycol-based antifreezes
Rank No. #2
Red Line (80204) Water Wetter - Coolant Additives - 12 Oz Bottle
  • Cutting edge technology - We at red line created this industry, pushing bubbles out of the way to ensure efficient & effective engine cooling
  • Ultimate cooling performance - Coolant additive with a unique agent that lowers temperatures by reducing and eliminating bubbles or vapor barrier that form on hot metal surfaces
  • Perform & protect - Waterwetter protects from rust & corrosion, allowing the use of straight water in racing or reduced antifreeze levels in warm climates
  • Easy to use - Use one bottle for most cars & light trucks, treats 3 to 5 gallons. Larger cooling systems should use 2 bottles; Small cooling systems should use 1oz per quart
  • Why red line - Established in 1979, red line products perform & protect better than any on the market. No compromises
Rank No. #3
Red line Super Cool with Water Wetter 1/2 US gallon
  • Convenient, pre-mixed coolant for motorcycles, ATVs, karts etc. - pour and go
  • Blended with purified, deionized water and proper WaterWetter percentage
  • Decreases engine temperature by up to 30 degrees
  • Provide rust and corrosion protection in plain water for racing engines
  • Designed for modern aluminum, cast iron, copper, brass and bronze systems
Rank No. #4
Red Line 80205 Supercool, 1/2 Gallon, 1 Pack
  • SuperCool with WaterWetter 1/2 gallons (4)
  • Fit type: Universal Fit
  • AFFORDABLE SOLUTIONS
  • Arms can easily fold when not in use
Rank No. #7
Royal Purple 01600 Purple Ice Super-Coolant Radiator Additive - 12 oz.
  • OPTIMIZES PROTECTION
  • Prevents erosion and electrolysis
  • Compatible with all coolants types
  • Contains lubricants to protect the water pump
  • Fit type: Vehicle Specific
Rank No. #8
Red Line 80225 SuperCool with WaterWetter - 4-1/2 Gallon
  • Convenient, pre-mixed coolant for motorcycles, ATVs, karts etc. - pour and go
  • Blended with purified, deionized water and proper WaterWetter percentage
  • Decreases engine temperature by up to 30 degrees
  • Provide rust and corrosion protection in plain water for racing engines
  • Designed for modern aluminum, cast iron, copper, brass and bronze systems
Rank No. #10
Red Line RED80213 Diesel Water Wetter - 15 oz.
  • Fit type: Vehicle Specific
  • RUNS SMOOTH
  • Seals up to 1/4 inch punctures; , non-toxic formula is tire pressure monitoring system (TPMS) safe
  • Tru-Flate's 'TruSeal' Premium Tire Sealant is a game changer - no more valve core removal when adding a tire sealant
Rank No. #12
Hy-Per Lube HPC100-3PK High Performance Super Coolant - 16 oz, (Pack of 3)
  • Reduces Engine Cylinder Heat Temperatures
  • Allows Safe Advancement of Ignition Timing Resulting in More Horsepower
  • Prevents Overheating in High Performance and High Load Engines
  • Complete Protection from Rust, Corrosion and Electrolysis
  • Compatible With All Types of Antifreeze, does not contain ethylene glycol
Rank No. #13
Engine Ice TYDS008 High Performance Coolant - 0.5 Gallon
  • Engine Ice hi-performance coolant is biodegradable, phosphate free and non-toxic, typically reduces operating race temperatures and effectively keeping boil over temperatures to 256° Fahrenheit or less and freeze-up protection to -26° Fahrenheit
  • With an average reduction in operating temperatures of 10° Fahrenheit - 20° Fahrenheit Engine Ice is perfect for racing or street, motorcycle or auto, ATV or snow machine
  • Engine Ice hi-performance coolant is legal in CCS and ASRA road racing and permitted at many tracks around the world. Easy to Use – Premixed with deionized water for out-of-the-bottle use.
  • Engineered to keep your operating temperatures at optimum performance to not lose power through excess heat; Engine Ice is safe for aluminum and most all metals
  • Uses propylene glycol, which has been proven to eliminate water pump gasket and seal failures; it has also shown in high load, high stress conditions to reduce operating temperatures more than standard coolants
Rank No. #14
PEAK OET Extended Life Red/Pink 50/50 Prediluted Antifreeze/Coolant for Asian Vehicles, 1 Gal.
  • 1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants
  • PROTECTS: Advanced formulation prevents rust & corrosion protecting all engine cooling system components
  • DESIGNED FOR ASIAN VEHICLES: Recommended for use with Lexus, Scion, and Toyota vehicles that require a RED/PINK Phosphate-Enhanced Organic Acid Technology (POAT) formula
  • GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection up to 150,000 miles or 5 years.
  • 50/50 PREDILUTED FOR QUICK TOP OFFS: Already diluted to make topping off your cooling system a breeze
Rank No. #15
Mopar 10 Year/150,000 Mile Coolant Concentrate
  • Genuine Mopar 10 Year/ 150,000 Mile Coolant
  • 1 Gallon Concentrate Bottle
  • Contains a bittering agent
Rank No. #16
Dowfrost HD (TM) Propylene Glycol - 1 Gallon
  • Yellow tinted for leak detection. HD is for higher temperature application
  • Corrosion inhibited to protect metals from corrosion.
  • Highest concentration (94%). Propylene Glycol based.
  • ChemWorld purchases 5,000 gallon tankers and packages Dowfrost HD in easy to handle 1 gallon containers.
  • Dowfrost TM HD is a trademark of Dow Chemical.
SaleRank No. #17
Mishimoto - MMRALC Liquid Chill Radiator Coolant Additive
  • Formulated to prevent future corrosion and reduce existing build-up
  • Decreases high coolant temperatures and does not require mixing
  • Net Weight: 4 fl oz. / Note: Non-corrosive 100% recyclable
  • Truck & SUV: 2 bottles / Sport Compact Cars: 1 bottle / ATV & Dirt Bike: 1oz per qt
  • Mishimoto Lifetime Warranty
Rank No. #18
Renowned Trading | Ultragard Antifreeze Coolant | Concentrate, 1 Gallon Makes 2 Gallons
  • Prevents freeze-ups all winter & boil-overs all summer.
  • Prevents rust & corrosion all year round.
  • 98% Ethylene Glycol based antifreeze, 100% concentrate.
  • Satisfaction Guarantee, Made in the USA.
Rank No. #19
PEAK OET Extended Life Blue 50/50 Prediluted Antifreeze/Coolant for European Vehicles, 1 Gal.
  • 1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants
  • PROTECTS: Advanced formulation prevents rust & corrosion protecting all cooling system components
  • DESIGNED FOR EUROPEAN VEHICLES: Recommended for use with BMW, Jaguar, Volvo, and other European vehicles that require a BLUE Silicate-Enhanced Hybrid Organic Acid Technology (Si-HOAT) formula
  • GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 150,000 miles or 5 years.
  • 50/50 PREDILUTED FOR QUICK TOP OFFS: Already prediluted to make topping off your cooling system a breeze
Rank No. #20
SPLASH 619526 RV/Marine Antifreeze, 1 gal, Pink
  • Auto & Truck Maintenance
  • Country of manufacture: United States
  • Manufacturer: SPLASH

Last update on 2021-11-01 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What is the best coolant additive?

A: Best Coolant Additive – Top Reviewed Coolant Additive to Cool Better Best Coolant Additive 1. Engine Ice TYDS008 Coolant 2. Valvoline Zerex G-05 Antifreeze 3. Original Ford Fluid VC-7-B Coolant 4. Zerex Original Green Antifreeze/Coolant 5. Star Brite Synthetic PG Engine Coolant

Q: Is there a better coolant than water?

A: The long answer: there are other more efficient coolants, but they have properties (or deficiencies in their properties) that make them unsuitable for computer cooling. Water is the best coolant to use due to its lack of volatility, lack of toxicity, and easy availability more than its thermal properties.

Q: Is coolant better than water?

A: Using water instead of coolant is best in cases of emergencies. Water does not have the corrosion inhibiting properties of coolant, and neither can it withstand extreme temperatures. Antifreeze has several ingredients that enable it to cool the engine and maintain a constant temperature for its normal operation.

Q: What is coolant with water wetter?

A: Red Line Water Wetter Super Coolant additive is a unique wetting agent which reduces coolant temperatures by as much as 20° F. This is a liquid coolant treatment product which is designed to be added to solutions of antifreeze and water to help improve the heat transfer properties of glycol-based antifreeze. This liquid product can be used to provide rust and corrosion protection in plain water for racing engines, which provides much better heat transfer properties than glycol-based antifreeze.