---
product_id: 48609810
title: "Red Line 80204 WaterWetter Super Coolant - 12 Ounce"
brand: "red line"
price: "€ 61.86"
currency: EUR
in_stock: true
reviews_count: 13
category: "Red Line"
url: https://www.desertcart.sk/products/48609810-red-line-80204-waterwetter-super-coolant-12-ounce
store_origin: SK
region: Slovakia
---

# Treats up to 5 gallons cooling system Lowers engine temp by up to 30°F Rust & corrosion protection Red Line 80204 WaterWetter Super Coolant - 12 Ounce

**Brand:** red line
**Price:** € 61.86
**Availability:** ✅ In Stock

## Summary

> 🌊 Stay cool, race ready, and corrosion free with Red Line WaterWetter!

## Quick Answers

- **What is this?** Red Line 80204 WaterWetter Super Coolant - 12 Ounce by red line
- **How much does it cost?** € 61.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/48609810-red-line-80204-waterwetter-super-coolant-12-ounce)

## Best For

- red line enthusiasts

## Why This Product

- Trusted red line brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Race-Ready Rust Defense:** Protect your cooling system from corrosion even when using plain water—perfect for high-performance and vintage engines alike.
- • **Universal Compatibility:** Works seamlessly with all antifreeze types, including DEX-COOL and long-life formulas, for worry-free upgrades.
- • **Trusted Legacy Since 1979:** Backed by decades of racing tech expertise, Red Line delivers uncompromising performance and protection.
- • **Cooler Engines, Smoother Rides:** Slash your engine temps by up to 30°F and keep your ride running chill under pressure.
- • **Precision Dosage for Every Engine:** One 12 oz bottle treats 3-5 gallons, ensuring optimal cooling efficiency for most passenger cars and light trucks.

## Overview

Red Line 80204 WaterWetter is a cutting-edge cooling system additive that reduces engine temperatures by up to 30°F while providing superior rust and corrosion protection. Compatible with all antifreeze types and plain water, it enhances heat transfer efficiency in modern and classic engines. Trusted since 1979, this 12 oz treatment bottle covers 3 to 5 gallons of coolant, making it an essential upgrade for performance and peace of mind.

## Description

Red Line Oil 80204 Water Wetter Cooling System Treatment 12 OZ. Water Wetter is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30 degrees Fahrenheit. 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. Or it can be added to new or used antifreeze to improve the heat transfer of ethylene and propylene glycol systems. Designed for modern aluminum, cast iron, copper, brass and bronze systems. Compatible with all antifreezes, including the latest long-life variations. Red Line Oils 80204 Water Wetter Cooling System Treatment 12 OZ. Features: 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. SINCE 1979 In 1979, Red Line Synthetic Oil began creating lubricants for the racing industry. Today, we manufacture more than 100 quality products, including motor oils, gear oils, assembly lubes, fuel additives and our popular WaterWetter cooling additive for the automotive, motorcycle, marine and industrial markets. TECHNOLOGY Using cutting edge technology, Red Line responds to the technical challenges of today's performance industry. We are enthusiasts that stay on top of each market niche, ensuring product recommendations that result in serious performance gains. We use this knowledge of racing to create high-performance products for track cars and street vehicles. Red Line products perform and protect better than any on the market. No compromises.

Review: Seems to work - Redline say this is supposed to decrease the chance of corrosion and improve the thermal conductivity of your engine coolant, thereby transferring heat away from your engine block more effectively. You'd probably not notice a decrease in your engine temperature unless you were already suffering from overheating problems, as most vehicles have a thermostat in the block that gradually opens as the engine reaches its designed operating temperature, directing all the water around the radiator instead of keeping it looping round the block. Thus, any improvement seen by this product would be invisible, as you'd just find the thermostat not needing to open as fully. The benefit would be in protecting your engine, added piece of mind, and elimination of any hot-spots that might encourage knocking and pinking. I went on holiday last summer, which would have involved a 500-mile round-trip even if I didn't do any driving at all when we got down to our destination. Seeing as my car had just turned 35, I figured it wouldn't hurt to try this stuff - especially as she's been knocking and pinking over the past year whenever fed standard unleaded, even though I've always used the same ignition timing, and the temperature gauge had been a little high in heavy traffic occasionally too. So when I did my service right before setting off, I added this stuff to my usual 50/50 blue coolant mix. Well, the temperature gauge definitely stayed in the area I like it to be in, so I guess it does what it's supposed to. Additionally, I'd say the pinking issue was slightly better although not cured. (I suspect that's more down to the ethanol content of 95 octane leaning the mixture out too much, rather than hot-spots in the block, though. I don't want to retard the timing any further as it used to be fine on 95-octane and too little ignition advance will reduce power and efficiency, and increase temperatures). All in all, I'd say this stuff does what it says on the tin. Hopefully its anti-corrosion properties also work too.
Review: Does what it claims - So far impressive, if you're car is running a little hot as was,my kitcar this can make a difference, was running up too 100 , since adding seems to stop around 95 but usually sitting around 90 , I gues around 5 degrees less, for the money really gives peace off mind, would recommend if you're car is running a bit warm.

## Features

- 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
- DIRECTIONS FOR USE - one bottle for most passenger cars and light trucks, treats 3 to 5 gallons or 13.2 to 15.9 liters, vehicles with larger cooling systems should use two bottles, small cooling systems should use 1oz (3 to 4 capfuls) per quart
- POPULAR FOR USE IN - new or used antifreeze (including DEX-COOL and long-life versions) to improve the heat transfer of ethylene and propylene glycol systems, satisfies ASTM D2570 and ASTM D1384 corrosion tests for glycol-based antifreezes
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000CPI5ZK |
| Best Sellers Rank | 65,207 in Automotive ( See Top 100 in Automotive ) 217 in Antifreeze & Coolants |
| Brand | Red Line |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,940) |
| Date First Available | 28 Mar. 2012 |
| Exterior | Painted |
| Item Weight | 340 g |
| Item model number | RED80204 |
| Manufacturer | Red Line |
| Manufacturer part number | 80204 |
| Model | Red Line 57-6510 |
| OEM Part Number | 80204 |
| Product Dimensions | 27.94 x 22.86 x 21.59 cm; 340 g |
| Special Features | Cutting edge technology, Unique agent for efficient cooling, Rust and corrosion protection |

## Product Details

- **Brand:** Red Line
- **Colour:** clear
- **Connectivity technology:** Wi-Fi
- **Material:** Aluminum, cast iron, copper, brass, bronze
- **Power source:** Corded Electric
- **Product dimensions:** 8.5D x 8.5W x 9.1H centimetres
- **Recommended uses for product:** Home
- **Special feature:** Cutting edge technology, Unique agent for efficient cooling, Rust and corrosion protection
- **Specific uses for product:** Temperature
- **Style:** Modern

## Images

![Red Line 80204 WaterWetter Super Coolant - 12 Ounce - Image 1](https://m.media-amazon.com/images/I/7180dmicFgL.jpg)

## Questions & Answers

**Q: will this be good for my classic mini**
A: Bradley,

I have just spent 30 minutes compiling an answer to your question. The Amazon mail delivery system rejected it. This is the nub.: As long as your cooling system is in good working order, you should have no problems. However, to get the best out of the wetting agent, you have to replace all the current coolant with it. As this fluid is expensive, any leak will be costly. I ran a L-R Discovery MPI with a similar agent without any problems. Classic Minis can suffer from overheating problems because their design was dictated by their size - most modern FWD cars have forward-facing radiators.

          As far as antifreeze and anti corrosion are concerned, you might have to refer to the wetting agent's manufacturer.

Best of luck with your Mini, you lucky person!

Best regards,

Peter H Mussell

**Q: I have a e46 bmw, is thie worth getting, can i just add it to my coolant?**
A: I have classic 1967 Rover, it’s fine for that, with blue col antifreeze. I flushed the radiator first, then added blucol and water with 3 caps of water wetter. However your car is more modern and it may need a different quantity.

**Q: Can you add directly to antifreeze solution in the car?**
A: Yes, you can add Water Wetter to your current antifreeze. Use about 1/3 of a bottle for 5 litres of antifreeze solution.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Seems to work
*by H***? on 31 May 2018*

Redline say this is supposed to decrease the chance of corrosion and improve the thermal conductivity of your engine coolant, thereby transferring heat away from your engine block more effectively. You'd probably not notice a decrease in your engine temperature unless you were already suffering from overheating problems, as most vehicles have a thermostat in the block that gradually opens as the engine reaches its designed operating temperature, directing all the water around the radiator instead of keeping it looping round the block. Thus, any improvement seen by this product would be invisible, as you'd just find the thermostat not needing to open as fully. The benefit would be in protecting your engine, added piece of mind, and elimination of any hot-spots that might encourage knocking and pinking. I went on holiday last summer, which would have involved a 500-mile round-trip even if I didn't do any driving at all when we got down to our destination. Seeing as my car had just turned 35, I figured it wouldn't hurt to try this stuff - especially as she's been knocking and pinking over the past year whenever fed standard unleaded, even though I've always used the same ignition timing, and the temperature gauge had been a little high in heavy traffic occasionally too. So when I did my service right before setting off, I added this stuff to my usual 50/50 blue coolant mix. Well, the temperature gauge definitely stayed in the area I like it to be in, so I guess it does what it's supposed to. Additionally, I'd say the pinking issue was slightly better although not cured. (I suspect that's more down to the ethanol content of 95 octane leaning the mixture out too much, rather than hot-spots in the block, though. I don't want to retard the timing any further as it used to be fine on 95-octane and too little ignition advance will reduce power and efficiency, and increase temperatures). All in all, I'd say this stuff does what it says on the tin. Hopefully its anti-corrosion properties also work too.

### ⭐⭐⭐⭐⭐ Does what it claims
*by S***N on 23 June 2025*

So far impressive, if you're car is running a little hot as was,my kitcar this can make a difference, was running up too 100 , since adding seems to stop around 95 but usually sitting around 90 , I gues around 5 degrees less, for the money really gives peace off mind, would recommend if you're car is running a bit warm.

### ⭐⭐⭐⭐⭐ Five Stars
*by S***L on 10 March 2015*

It worked on my motorbike. Dropped the temperature by about 10 degrees. Will use again.

## Frequently Bought Together

- Red Line 80204 WaterWetter Super Coolant - 12 Ounce
- PEAK 50/50 Prediluted Antifreeze and Coolant for All Engine Cooling Systems
- BlueDevil Products 00203 Radiator Flush & Oil Degreaser - 1 Quart

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/48609810-red-line-80204-waterwetter-super-coolant-12-ounce](https://www.desertcart.sk/products/48609810-red-line-80204-waterwetter-super-coolant-12-ounce)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-11*