--- product_id: 296827372 title: "Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz" brand: "quicksilver" price: "€ 55.90" currency: EUR in_stock: true reviews_count: 5 category: "Quicksilver" url: https://www.desertcart.gr/products/296827372-quicksilver-mercury-marine-92-8m0047921-quickleen-12-oz store_origin: GR region: Greece --- # Instant power boost Deep fuel system cleaning Optimized for marine engines Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz **Brand:** quicksilver **Price:** € 55.90 **Availability:** ✅ In Stock ## Summary > 🛥️ Power up your ride, fish on with confidence! ## Quick Answers - **What is this?** Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz by quicksilver - **How much does it cost?** € 55.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/296827372-quicksilver-mercury-marine-92-8m0047921-quickleen-12-oz) ## 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 - • **Prolong Engine Life:** Regular use prevents carbon buildup, ensuring sustained peak performance. - • **Smooth & Efficient Runs:** Eliminates intermittent misses and restores smooth throttle response. - • **Perfect for Every Boater:** Compact 12 oz liquid formula fits easily in your marine toolkit for on-the-go maintenance. - • **Revive Your Outboard's Power:** Shock-treat your engine with a 3oz per gallon ratio for immediate performance restoration. - • **Trusted Mercury Marine Quality:** Engineered by Mercury for seamless compatibility and superior results. ## Overview Quicksilver Mercury Marine Quickleen is a 12 oz liquid fuel additive designed to clean and restore marine outboard engines. Trusted by boaters for its ability to remove carbon deposits and improve engine performance, it delivers an instant power boost and smoother operation. Ideal for maintaining peak engine health, this Mercury-engineered formula is a must-have for any serious angler or boating enthusiast. ## Description Mercury Marine 92-8M0047921 Quickleen 12 oz 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 - manufacturer: Mercury - Item Trademark: MERCURY - Item Category: Fishing Equipment ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005S4HQXC | | Best Sellers Rank | #107,357 in Automotive ( See Top 100 in Automotive ) #381 in Oil & Fluid Additives | | Brand | Quicksilver | | Brand Name | Quicksilver | | Contains Liquid Contents? | Yes | | Customer Reviews | 4.8 out of 5 stars 482 Reviews | | Global Trade Identification Number | 00745061870130 | | Item Form | Liquid | | Item Volume | 12 Fluid Ounces | | Item Weight | 0.01 Ounces | | Item form | Liquid | | Item volume | 12 Fluid Ounces | | Item weight | 0.01 Ounces | | Material Features | Fish | | Material features | Fish | | Model Number | 8M0047921 | | Part Number | 8M0047921 | | UPC | 745061870147 745061870130 | | Unit Count | 12.0 Milliliters | | Unit count | 12.0 Milliliters | ## Product Details - **Brand:** Quicksilver - **Item form:** Liquid - **Item volume:** 12 Fluid Ounces - **Material features:** Fish - **Unit count:** 12.0 Milliliters ## Images ![Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz - Image 1](https://m.media-amazon.com/images/I/61A1aj-F3NL.jpg) ![Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz - Image 2](https://m.media-amazon.com/images/I/71mvO5Ai1BL.jpg) ![Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz - Image 3](https://m.media-amazon.com/images/I/71b73CZQOtL.jpg) ![Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz - Image 4](https://m.media-amazon.com/images/I/71Ml56tP8VL.jpg) ![Quicksilver Mercury Marine 92-8M0047921 Quickleen, 12 oz - Image 5](https://m.media-amazon.com/images/I/719Oc3xW7tL.jpg) ## 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 18 March 2026* Good stuff! ### ⭐⭐⭐⭐⭐ Read the reviews - This Stuff Works! *by Z***N on 9 October 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. ### ⭐⭐⭐⭐⭐ Its awesome *by A***S on 27 July 2025* The best by far of any cleaner I've seen. Seafood is very good stuff and a favorite go to when in a bind, but this cleaner is 10 times better ## 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.gr/products/296827372-quicksilver-mercury-marine-92-8m0047921-quickleen-12-oz](https://www.desertcart.gr/products/296827372-quicksilver-mercury-marine-92-8m0047921-quickleen-12-oz) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-16*