--- product_id: 75188598 title: "Quicksilver by Mercury Marine 25W-40 Marine Engine Oil" brand: "quicksilver" price: "616.59 DT" currency: TND in_stock: true category: "Quicksilver" url: https://www.desertcart.tn/products/75188598-quicksilver-by-mercury-marine-25w-40-marine-engine-oil store_origin: TN region: Tunisia --- # 25W-40 viscosity for optimal engine flow Synthetic blend with superior corrosion & wear protection Specifically engineered for 4-stroke marine engines Quicksilver by Mercury Marine 25W-40 Marine Engine Oil **Brand:** quicksilver **Price:** 616.59 DT **Availability:** ✅ In Stock ## Summary > 🛥️ Power your marine adventures with Quicksilver’s unbeatable engine oil! ## Quick Answers - **What is this?** Quicksilver by Mercury Marine 25W-40 Marine Engine Oil by quicksilver - **How much does it cost?** 616.59 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/75188598-quicksilver-by-mercury-marine-25w-40-marine-engine-oil) ## 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 - • **OEM Certified Quality:** Meets Mercury Marine’s exacting standards for reliable, factory-level engine protection. - • **Viscosity You Can Trust:** 25W-40 viscosity ensures consistent lubrication under varying marine conditions, maintaining peak performance. - • **Marine-Grade Performance:** Tailored for high-rpm 4-stroke outboard motors to keep your boat running smooth and strong. - • **Ready for the Open Water:** Direct replacement for Mercury Marine part 8M0078630—easy swap, no compromises. - • **Ultimate Engine Longevity:** Synthetic blend formula fights corrosion and wear, extending your engine’s life on every voyage. ## Overview Quicksilver 25W-40 Marine Engine Oil is a synthetic blend designed specifically for 4-stroke marine engines, offering superior corrosion resistance and wear protection. It meets Mercury Marine OEM specs, ensuring optimal viscosity retention and engine performance in high-rpm outboard motors. Packaged in a 1-gallon bottle, it’s the trusted choice for boaters seeking reliable, long-lasting engine care. ## Description Buy Quicksilver 25W-40 4-Stroke Synthetic Blend Marine Engine Oil, 1 Gallon: Motor Oils - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## 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 | #1,592 in Automotive ( See Top 100 in Automotive ) #30 in Motor Oils | | Brand Name | Quicksilver | | Compatible with Vehicle Type | Boat | | Container Type | Bottle | | Customer Reviews | 4.8 4.8 out of 5 stars (1,749) | | 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 | | Number of Packs | 1 | | Size | 1 gallon | | UPC | 745061915572 745061915824 | | Unit Count | 128 Fluid Ounces | | 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 by Mercury Marine 25W-40 Marine Engine Oil - Image 1](https://m.media-amazon.com/images/I/61KFdPGIarL.jpg) ![Quicksilver by Mercury Marine 25W-40 Marine Engine Oil - Image 2](https://m.media-amazon.com/images/I/71patWZbEVL.jpg) ![Quicksilver by Mercury Marine 25W-40 Marine Engine Oil - Image 3](https://m.media-amazon.com/images/I/81RjEuG1oQL.jpg) ![Quicksilver by Mercury Marine 25W-40 Marine Engine Oil - Image 4](https://m.media-amazon.com/images/I/61M24RgnazL.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.tn/products/75188598-quicksilver-by-mercury-marine-25w-40-marine-engine-oil](https://www.desertcart.tn/products/75188598-quicksilver-by-mercury-marine-25w-40-marine-engine-oil) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-15*