--- product_id: 11823090 title: "Quicksilver Quickleen Engine and Fuel System Cleaner" brand: "quicksilver" price: "₩44686" currency: KRW in_stock: true reviews_count: 8 category: "Quicksilver" url: https://www.desertcart.kr/products/11823090-quicksilver-quickleen-engine-and-fuel-system-cleaner store_origin: KR region: South Korea --- # Treats 5 gallons per 1 oz Removes carbon deposits fast Prevents engine knocking & seize-up Quicksilver Quickleen Engine and Fuel System Cleaner **Brand:** quicksilver **Price:** ₩44686 **Availability:** ✅ In Stock ## Summary > ⛽ Clean fuel, smooth ride — don’t let your engine miss out! ## Quick Answers - **What is this?** Quicksilver Quickleen Engine and Fuel System Cleaner by quicksilver - **How much does it cost?** ₩44686 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/11823090-quicksilver-quickleen-engine-and-fuel-system-cleaner) ## Best For - quicksilver enthusiasts ## Why This Product - Trusted quicksilver brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Easy & Economical:** Just 1 ounce treats 5 gallons of fuel, making it a cost-effective solution for maintaining peak engine health. - • **Deep Carbon Cleanse:** Targets and dissolves stubborn carbon buildup on injectors, valves, spark plugs, and piston crowns for smoother engine operation. - • **Fuel Efficiency Booster:** Optimizes performance with every fill-up, compatible with all gasoline grades including ethanol blends. - • **Universal Compatibility:** Safe for all 2- and 4-cycle carbureted and fuel-injected engines, including cars, motorcycles, marine engines, and lawn equipment. - • **Engine Protection Shield:** Prevents knocking and piston seize-up, extending engine life and reducing costly repairs. ## Overview Quickleen Engine and Fuel System Cleaner is a powerful additive designed to remove carbon deposits and prevent engine knocking across all gasoline engines. Suitable for a wide range of vehicles and equipment, it enhances fuel efficiency and engine longevity with just 1 ounce per 5 gallons of fuel. ## Description Quickleen Engine and Fuel System Cleaner 8M0047921 is for use in all 2‑ and 4‑cycle carbureted and fuel‑injected gasoline engines including cars, trucks, motorcycles, ATVs, snowmobiles, marine engines, lawn mowers, chain saws, string trimmers and snow blowers. Safe for catalyzed engines. It can help maximize engine performance with all grades of gasoline. It will help control corrosion, gum and varnish build-up and phase separation associated with ethanol blended gasoline. It will quickly and thoroughly remove carbon deposits from carburetors, injectors, intake valves, spark plugs, piston crowns and cylinder heads. It can extend spark plug life and prevent engine knocking and piston seize-up. Review: Make run like new ! - Good stuff! Review: Read the reviews - This Stuff Works! - Our 75hp Mercury outboard hadn't been run for a over a year. Prior to that it just didn't seem to have the power it should & also sounded like it had bit of an intermittent miss. I read through some boating forums and saw the high praises for this product as being better than the Marine Seafoam. It is made by Mercury so figured I didn't have much to lose and everything to gain. On the recommendation to "shock" the system and clean the fuel system and de-carbon the power head properly, I used a 3oz. to one gallon ratio. I had a small portable 3 gal. fuel tank and once on the lake I switched over from the onboard boat fuel tank to the portable. Almost instantaneously I could tell/feel the difference with the motor....seriously, scouts honor! I continued to run out the small tank varying throttle positions at times. When done with the "shock treatment" the motor was back to running smooth & powerful as it should. Made our fishing trip in MN a pure joy. I'm a firm believer now and will always use this additive as directed for sustained maintenance whenever fueling up. PS....don't forget to add a quality fuel stabilizer as this product does not contain those pertinent ingredients. Fish on. ## Features - Gas treatment and injector cleaner for use with all grades of gasoline and ethanol-blend fuel - Quickly and thoroughly removes carbon deposits from carburetors, injectors, intake valves, spark plugs, piston crowns and cylinder heads - Prevents engine knocking and piston seize-up - Can be used at every fuel tank fill-up — 1 ounce treats 5 gallons of gasoline - Manufacturer part number 8M0047921 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005S4HQXC | | Best Sellers Rank | #6,809 in Automotive ( See Top 100 in Automotive ) #19 in Fuel Additives #23 in Fuel System Cleaners | | Brand | Quicksilver | | Brand Name | Quicksilver | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.7 out of 5 stars 948 Reviews | | Global Trade Identification Number | 00745061870130 | | Included Components | End Product & Information | | Item Form | Liquid | | Item Type Name | Mercury Marine 92-8M0047921 Quickleen - 12 oz | | Item Volume | 12 Fluid Ounces | | Item Weight | 0.01 Ounces | | Manufacturer | Quicksilver | | Material Feature | Unspecified | | Material Features | Unspecified | | Model Number | 8M0047921 | | Number of Items | 1 | | Part Number | 8M0047921 | | Scent | Unspecified | | Size | 12 Fl Oz (Pack of 1) | | Specific Uses For Product | Engine | | Surface Recommendation | Metal | | UPC | 745061870147 745061870130 | | Unit Count | 12.0 Fluid Ounces | ## Product Details - **Brand:** Quicksilver - **Item Form:** Liquid - **Scent:** Unspecified - **Specific Uses For Product:** Engine - **Material Feature:** Unspecified ## Images ![Quicksilver Quickleen Engine and Fuel System Cleaner - Image 1](https://m.media-amazon.com/images/I/61A1aj-F3NL.jpg) ![Quicksilver Quickleen Engine and Fuel System Cleaner - Image 2](https://m.media-amazon.com/images/I/71mvO5Ai1BL.jpg) ![Quicksilver Quickleen Engine and Fuel System Cleaner - Image 3](https://m.media-amazon.com/images/I/71b73CZQOtL.jpg) ![Quicksilver Quickleen Engine and Fuel System Cleaner - Image 4](https://m.media-amazon.com/images/I/71Ml56tP8VL.jpg) ![Quicksilver Quickleen Engine and Fuel System Cleaner - Image 5](https://m.media-amazon.com/images/I/719Oc3xW7tL.jpg) ## Available Options This product comes in different **Pattern** options. ## Questions & Answers **Q: Is this the genuine mercury quickleen? label on this bottle doesn't say mercury, at top, unlike the bottle i bought at a local marina.** A: yepper same works great **Q: Product features and details states 12 pack , some reviews say different, so which is true ?** A: This is not a 12 pack. **Q: what is the ratio for 3 gal tank** A: It calls for 1 ounce per 5/6 gallon. So I would say a half an ounce for three gallons **Q: Can I use this in my 2001 4 stroke Yamaha 115 outboard?** A: I used in my 2006 Honda 4 stroke and did wonders. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Make run like new ! *by C***N on March 18, 2026* Good stuff! ### ⭐⭐⭐⭐⭐ Read the reviews - This Stuff Works! *by Z***N on October 9, 2024* Our 75hp Mercury outboard hadn't been run for a over a year. Prior to that it just didn't seem to have the power it should & also sounded like it had bit of an intermittent miss. I read through some boating forums and saw the high praises for this product as being better than the Marine Seafoam. It is made by Mercury so figured I didn't have much to lose and everything to gain. On the recommendation to "shock" the system and clean the fuel system and de-carbon the power head properly, I used a 3oz. to one gallon ratio. I had a small portable 3 gal. fuel tank and once on the lake I switched over from the onboard boat fuel tank to the portable. Almost instantaneously I could tell/feel the difference with the motor....seriously, scouts honor! I continued to run out the small tank varying throttle positions at times. When done with the "shock treatment" the motor was back to running smooth & powerful as it should. Made our fishing trip in MN a pure joy. I'm a firm believer now and will always use this additive as directed for sustained maintenance whenever fueling up. PS....don't forget to add a quality fuel stabilizer as this product does not contain those pertinent ingredients. Fish on. ### ⭐⭐⭐⭐⭐ Quality Quicksilver products *by P***L on November 9, 2025* Quality engine and fuel system. Had contaminated fuel and this is really helping smooth out the rough idle. ## Frequently Bought Together - Quicksilver Quickleen Engine and Fuel System Cleaner - Quicksilver Quickstor Fuel Treatment and Stabilizer - Mercury Marine Quickare Fuel Treatment, 12 Ounces 92-8M0047930 --- ## 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.kr/products/11823090-quicksilver-quickleen-engine-and-fuel-system-cleaner](https://www.desertcart.kr/products/11823090-quicksilver-quickleen-engine-and-fuel-system-cleaner) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-27*