--- product_id: 259213242 title: "80205 Engine Coolant Additive Supercool With Waterwetter - 0.5 Gallon" brand: "red line" price: "¥10027" currency: JPY in_stock: true reviews_count: 5 category: "Red Line" url: https://www.desertcart.jp/products/259213242-80205-engine-coolant-additive-supercool-with-waterwetter-0-5-gallon store_origin: JP region: Japan --- # Doubles heat transfer efficiency Universal fit for all cooling systems ASTM corrosion & rust protection 80205 Engine Coolant Additive Supercool With Waterwetter - 0.5 Gallon **Brand:** red line **Price:** ¥10027 **Availability:** ✅ In Stock ## Summary > ❄️ Stay cool, ride hotter—engine protection that’s a game changer! ## Quick Answers - **What is this?** 80205 Engine Coolant Additive Supercool With Waterwetter - 0.5 Gallon by red line - **How much does it cost?** ¥10027 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/259213242-80205-engine-coolant-additive-supercool-with-waterwetter-0-5-gallon) ## 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 - • **Seamless Compatibility:** Works flawlessly with all glycol antifreezes and coolants—future-proof your ride’s cooling system. - • **Plug & Play Convenience:** Ready-to-use 0.5 gallon bottle—no mixing, no hassle, just pour and go for motorcycles, ATVs, and more. - • **Supercharged Cooling Power:** Pre-mixed with WaterWetter for instant, optimized heat dissipation—keep your engine cooler under pressure. - • **Trusted Legacy Performance:** From Red Line, a brand since 1979 known for uncompromising quality and elite motorsports engineering. - • **Ultimate Corrosion Defense:** Advanced inhibitors protect aluminum, cast iron, brass, and bronze—extend engine life and avoid costly repairs. ## Overview Red Line 80205 Supercool is a premium pre-mixed coolant additive enhanced with WaterWetter, designed to double heat transfer efficiency and reduce engine temperatures. It offers superior rust and corrosion protection for all modern cooling systems, compatible with all antifreeze types, and is ideal for motorcycles, ATVs, and small water-cooled engines. Trusted since 1979, it delivers professional-grade performance and convenience in a 0.5 gallon ready-to-use bottle. ## Description Red Line Supercool Extreme Powersports Coolant is a pre-mixed coolant for motorcycles, ATVs, karts, generators, and other small water-cooled engines. This product doubles the wetting ability of water to improve heat transfer and reduce cylinder head temperatures. Compatible with all glycol antifreeze and coolants, Red Line SuperCool is blended with deionized and purified water and WaterWetter, the most effective heat transfer agent available. WaterWetter contains corrosion inhibitors to satisfy the same ASTM corrosion tests that glycol-based antifreezes are designed to pass (ASTM D2570 and ASTM D1384). Red Line's WaterWetter provides excellent rust and corrosion protection for modern cast iron, aluminum, and brass systems. Review: Température plus basse - Sxs ,la température semble se tenir plus basse Review: Brilliant coolant - Used this stuff for years . Does what it says ## Technical Specifications | Specification | Value | |---------------|-------| | Automotive Fit Type | Universal Fit | | Brand | Red Line | | Liquid volume | 64 Fluid Ounces | | Package information | Bottle | | UPC | 083522802055 | | Vehicle service type | Motorcycle | ## Product Details - **Brand:** Red Line - **Liquid volume:** 64 Fluid Ounces - **Package information:** Bottle - **UPC:** 083522802055 - **Vehicle service type:** Motorcycle ## Images ![80205 Engine Coolant Additive Supercool With Waterwetter - 0.5 Gallon - Image 1](https://m.media-amazon.com/images/I/715-oF9jDrL.jpg) ## Questions & Answers **Q: will it make the car runn cooler than just water and anti freeze?** A: Well it is designed for motorcycles, if your car doesn't require a specific coolant like Dex or something then I think it would. It does a great job of keeping my KTM motorcycle running cooler in extreme heat. Hope that helps. **Q: will it make the car run cooler than with just water and anti freeze?** A: It should, it reduces the little bubbles in the coolant that reduce heat transfer, so it works with both coolant and straight water. Don't expect to fix other issues like bad radiator, water pump, thermostat, etc. **Q: Hi can i used on my model T 1926** A: It's no problem, will work on your Model T cooling system. I been using this product for 10 years. **Q: Dumb question. Can you add Distilled water if you want to?** A: Since your normal coolant solution should be antifreeze and distilled water, there is no issue. Just remember, that redline wetter doesn't take the place of all your antifreeze. You still need near a 50/50 antifreeze mix to protect your system from corrosion and freezing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Température plus basse *by B***R on 10 August 2023* Sxs ,la température semble se tenir plus basse ### ⭐⭐⭐⭐⭐ Brilliant coolant *by M***N on 18 March 2025* Used this stuff for years . Does what it says ### ⭐⭐⭐⭐⭐ 信頼度抜群！！ *by L***A on 1 December 2014* アメリカのアルファロメオのスピードショップで売っていたので信頼してました。 今迄以上に冷却出来ているようです。 自分の場合2倍位濃く使ってます。 しかも精製水を使いました。 大切な車に使うのでRED LAINはオススメです。 ## Frequently Bought Together - Red Line 80205, Supercool Extreme Powersports Coolant, Safe for Track, Street, Off-Roa - 1/2 Gallon (64 Ounces) - Motul 104121 300V Factory Line 4T 10W-40 100% Synthetic Engine Oil 4 Liters Ester Core Technology Racing Motorcycle Motor Lubricant - K&N Motorcycle Oil Filter: High Performance, Premium, Designed to be used with Synthetic or Conventional Oils: Fits Select Honda, Kawasaki, Triumph, Yamaha Motorcycles, KN-204-1 --- ## 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.jp/products/259213242-80205-engine-coolant-additive-supercool-with-waterwetter-0-5-gallon](https://www.desertcart.jp/products/259213242-80205-engine-coolant-additive-supercool-with-waterwetter-0-5-gallon) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-10*