--- product_id: 75188598 title: "Quicksilver 25W-40 Synthetic Blend - Gallon" brand: "quicksilver" price: "€ 178.35" currency: EUR in_stock: true category: "Quicksilver" url: https://www.desertcart.gr/products/75188598-quicksilver-25w-40-synthetic-blend-gallon store_origin: GR region: Greece --- # Specifically engineered for 4-stroke marine engines 25W-40 viscosity for optimal engine flow Superior corrosion & wear protection Quicksilver 25W-40 Synthetic Blend - Gallon **Brand:** quicksilver **Price:** € 178.35 **Availability:** ✅ In Stock ## Summary > 🛥️ Power your marine adventures with Quicksilver — where performance meets protection! ## Quick Answers - **What is this?** Quicksilver 25W-40 Synthetic Blend - Gallon by quicksilver - **How much does it cost?** € 178.35 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/75188598-quicksilver-25w-40-synthetic-blend-gallon) ## 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 - • **Ready for Every Voyage:** 1-gallon bottle with 3.79L volume, perfectly sized for your boat’s maintenance needs—never get caught unprepared on the water. - • **OEM-Approved Reliability:** Direct replacement for Mercury Marine parts, meeting exact manufacturer specs for guaranteed compatibility and peace of mind. - • **Trusted Legacy of Excellence:** Backed by Quicksilver’s 65+ years of marine industry leadership, delivering proven durability and performance. - • **Ultimate Corrosion & Wear Defense:** Protect your investment with industry-leading resistance that keeps internal components pristine even in harsh saltwater conditions. - • **Engineered for Peak Marine Performance:** Synthetic blend designed to maintain strength and viscosity under high RPMs, ensuring your outboard runs smoother, longer. ## Overview Quicksilver by Mercury Marine 25W-40 Marine Engine Oil is a synthetic blend formulated specifically for 4-stroke marine engines, offering superior corrosion resistance and wear protection. It meets Mercury Marine OEM specifications and industry standards like FC-W, ensuring optimal viscosity retention and engine performance in demanding marine environments. Packaged in a convenient 1-gallon bottle, it’s the trusted choice for boaters seeking reliability and longevity from their engine oil. ## Description Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard applications, this 4-stroke synthetic blend 25W-40 marine engine oil has been extensively tested to ensure impressive protection against corrosion and wear. Exceeds all marine industry 4-stroke oil requirements including FC-W and FC-W catalyst compatible. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original equipment replacement engine parts, oils, and accessories, but also works to serve all original equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind. ## Features - Direct replacement for Mercury Marine 8M0078630 - Designed for use in 4-stroke marine engines - Synthetic blend formulated to provide ultimate corrosion resistance and wear protection in high-rpm 4-stroke outboard motors - Offers industry-leading strength and viscosity retention to maintain peak engine performance and reliability - 25W-40 viscosity - Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your outboard - Manufacturer part number 8M0078623 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00FM9AVKI | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #925 in Automotive ( See Top 100 in Automotive ) #21 in Motor Oils | | Brand | Quicksilver | | Brand Name | Quicksilver | | Compatible with Vehicle Type | Boat | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 1,725 Reviews | | Global Trade Identification Number | 00745061915572 | | Included Components | End Product & Information | | Item Type Name | Oil | | Item Weight | 7 Pounds | | Liquid Volume | 3.79 Liters | | Manufacturer | Quicksilver | | Manufacturer Part Number | 8M0078623 | | Manufacturer Warranty Description | See Label | | Model Number | 8M0078623 | | Package Information | Bottle | | Size | 1-Gallon | | UPC | 745061915572 745061915824 | | Unit Count | 128.0 Fluid Ounces | | Vehicle Service Type | Boat | | Viscosity Level | Medium to High | ## Product Details - **Brand:** Quicksilver - **Liquid Volume:** 3.79 Liters - **Package Information:** Bottle - **UPC:** 745061915572 745061915824 - **Vehicle Service Type:** Boat ## Images ![Quicksilver 25W-40 Synthetic Blend - Gallon - Image 1](https://m.media-amazon.com/images/I/61KFdPGIarL.jpg) ## Available Options This product comes in different **Pattern, Size, Style** options. ## Questions & Answers **Q: is this oil full synthetic** A: This product is a mineral based oil. “ The NEW mineral 4-Stroke oil is also now approved for use in all outboard engines; previously only our syntetic blend could make this claim” Quicksilver makes a synthetic and it states synthetic on its lable. **Q: What's the difference between mercury oil** A: It is the same as Mercury oil. Quicksilver is the Mercury lubricant brand and has been for years. **Q: Is this for 01 bayliner Ccapri 4 cilinder** A: If it has mercruiser motor. **Q: How do I know if motor is 2 or 4 stroke? Basic Mercury 125 pontoon motor** A: Look on the engine and your book if you got one. It will tell you if 2 or 4 stroke ## Frequently Bought Together - Quicksilver by Mercury Marine 25W-40 Marine Engine Oil - Quicksilver 866340Q03 Oil Filter for MerCruiser Sterndrive and Inboard Engines - Quicksilver 858064Q01 High Performance SAE 90 Gear Lube for Mercury Outboards and MerCruiser Sterndrives, 32 oz --- ## 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/75188598-quicksilver-25w-40-synthetic-blend-gallon](https://www.desertcart.gr/products/75188598-quicksilver-25w-40-synthetic-blend-gallon) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-16*