--- product_id: 633521887 title: "1804 Radiator Cleaner - 300 ml" brand: "liqui moly" price: "NZ$37" currency: NZD in_stock: true reviews_count: 9 category: "Liqui Moly" url: https://www.desertcart.nz/products/633521887-1804-radiator-cleaner-300-ml store_origin: NZ region: New Zealand --- # Cleans 10L cooling water per 300ml Restores optimal cooling & performance Neutralizes acids for engine safety 1804 Radiator Cleaner - 300 ml **Brand:** liqui moly **Price:** NZ$37 **Availability:** ✅ In Stock ## Summary > 🔥 Clean smarter, cool faster — Radiator care redefined! ## Quick Answers - **What is this?** 1804 Radiator Cleaner - 300 ml by liqui moly - **How much does it cost?** NZ$37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/633521887-1804-radiator-cleaner-300-ml) ## Best For - liqui moly enthusiasts ## Why This Product - Trusted liqui moly brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Safe for all water-cooled engines and heating systems—one solution for your entire fleet. - • **Efficient Cleaning Capacity:** One 300ml bottle treats up to 10 liters of cooling water—maximizing value and convenience. - • **Non-Abrasive & Cruelty-Free:** Engineered to clean without damage, with a cinnamon scent for a fresh, professional touch. - • **Comprehensive Deposit Removal:** Eliminates scale, grease, and sludge to restore peak radiator efficiency and prevent overheating. - • **Powerful Acid-Neutralizing Formula:** Protect your engine with a gentle yet effective cleaner that avoids harsh acids and alkalis. ## Overview Liqui Moly 1804 Radiator Cleaner is a 300ml liquid additive designed to safely and effectively remove deposits like scale, grease, and sludge from all water-cooled engines. Its acid-neutralizing, non-abrasive formula restores optimal cooling system performance while treating up to 10 liters of coolant per bottle. Trusted by professionals, it combines powerful cleaning with cruelty-free ingredients and a refreshing cinnamon scent. ## Description Removes deposits in cooling systems of all water cooled engines. It removes scale, grease, sludge and other deposits to allow restored performance and proper cooling performance. Review: Very good product for radiator cleaning and advance protection - It cleans the radiator very well. I used full quantity and flushed with battery distilled water 3 times and radiator was cleaned completely. Review: Goodwell - Why did you pick this product vs others?: Very nice product Jammu ## Features - Suitable for all cooling and heating systems. - Contains no harsh acids or alkalis. It is acid neutralizing. - 300ml is enough for 10L of cooling water. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CPL99N6 | | Best Sellers Rank | #29,510 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #64 in Automotive Cleaner Oils & Fluids | | Brand | Liqui Moly | | Brand Name | Liqui Moly | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.5 out of 5 stars 990 Reviews | | Item Form | Liquid | | Item Type Name | radiator | | Item Volume | 300 Millilitres | | Item Weight | 0.55 Pounds | | Manufacturer | Liqui Moly | | Material Feature | Cruelty Free | | Material Features | Cruelty Free | | Model Number | 2051 | | Number of Items | 1 | | Part Number | 2051 | | Scent | Cinnamon | | Size | 300 ml (Pack of 1) | | Special Features | Non Abrasive | | Specific Uses For Product | Engine | | Surface Recommendation | Metal | | Unit Count | 300.0 Milliliters | ## Product Details - **Brand:** Liqui Moly - **Contains Liquid Contents:** Yes - **Item Volume:** 300 Millilitres - **Item Weight:** 249 Grams - **Manufacturer:** Liqui Moly - **Net Quantity:** 300.0 Milliliters - **Size:** 300 Milliliter - **Special Feature:** Non Abrasive - **Specific Uses For Product:** Engine - **Surface Recommendation:** Metal ## Images ![1804 Radiator Cleaner - 300 ml - Image 1](https://m.media-amazon.com/images/I/71+RpaQtNTL.jpg) ![1804 Radiator Cleaner - 300 ml - Image 2](https://m.media-amazon.com/images/I/81bvVoWzmKL.jpg) ## Questions & Answers **Q: do you have to flush after ? Or can you just leave in?** A: You rinse the cooling system with water, flush it out, then refill **Q: Can this be used with aluium rad** A: Yes **Q: how large a radiator does this product clean?** A: It is based in total coolant volume. If your vehicle's coolant capacity is higher than the recommended maximum dilution quantity, you will need to purchase another. **Q: Is this a 10 minute flush or does it stay in longer?** A: Follow the instructions on the bottle. It is not recommended to drive with it in nor have multiple engine on/off cycles. Letting the car idle at least 10-15 minutes will not hurt the system, but do not be excessive. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good product for radiator cleaning and advance protection *by A***I on 28 August 2025* It cleans the radiator very well. I used full quantity and flushed with battery distilled water 3 times and radiator was cleaned completely. ### ⭐⭐⭐⭐⭐ Goodwell *by S***A on 8 July 2025* Why did you pick this product vs others?: Very nice product Jammu ### ⭐ Don't buy *by P***A on 22 February 2026* Never ever buy this . It's more dangerous than actual rust or debris. Even after 25 litres of distilled water flush after using this product still I'm getting foamy bubbles complete waste of time and efforts . If not cleared properly these bubbles with mix with coolant and do more damage to water pump. ## Frequently Bought Together - Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051 - Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037 - LIQUI MOLY Valve Clean | 150 ml | Petroladititive | SKU: 2001, Blue --- ## 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.nz/products/633521887-1804-radiator-cleaner-300-ml](https://www.desertcart.nz/products/633521887-1804-radiator-cleaner-300-ml) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-07-22*