--- product_id: 1626665 title: "Optimax /DFI 2-Cycle Outboard Oil 1 Gallon 92-858037K01" brand: "mercury" price: "778.64 DT" currency: TND in_stock: true category: "Mercury" url: https://www.desertcart.tn/products/1626665-optimax-dfi-2-cycle-outboard-oil-1-gallon-92-858037k01 store_origin: TN region: Tunisia --- # Optimized for Mercury & Mariner DFI 2-cycle engines Withstands high operating temperatures Synthetic blend for max engine protection Optimax /DFI 2-Cycle Outboard Oil 1 Gallon 92-858037K01 **Brand:** mercury **Price:** 778.64 DT **Availability:** ✅ In Stock ## Summary > ⚡ Power your ride with the oil that keeps pros ahead of the pack! ## Quick Answers - **What is this?** Optimax /DFI 2-Cycle Outboard Oil 1 Gallon 92-858037K01 by mercury - **How much does it cost?** 778.64 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/1626665-optimax-dfi-2-cycle-outboard-oil-1-gallon-92-858037k01) ## Best For - mercury enthusiasts ## Why This Product - Trusted mercury brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** Backed by Mercury Marine’s expertise and a 4.8-star rating from 800+ users who demand reliability and performance. - • **High-Heat Resilience:** Engineered to thrive under extreme temperatures, ensuring consistent lubrication and preventing piston scuffing. - • **Carbon-Build Minimizer:** Reduces carbon deposits to maintain peak engine speed and acceleration—because every second counts on the water. - • **Seamless Compatibility:** Mixes effortlessly with standard 2-cycle oils, making upgrades hassle-free without compromising warranty protection. - • **Engine-Optimized Synthetic Blend:** Precision-formulated to maximize performance and durability in Mercury and Mariner Optimax & DFI 2-cycle outboards. ## Overview Mercury Optimax/DFI 2-Cycle Outboard Oil is a synthetic blend specifically engineered for Mercury and Mariner Optimax and direct fuel injected 2-cycle outboard engines. It delivers superior lubrication, reduces carbon build-up, and withstands high operating temperatures to maximize engine performance and longevity. Compatible with typical 2-cycle oils and backed by strong user ratings, it ensures warranty protection and peak efficiency under demanding conditions. ## Description A synthetic blend 2-cycle engine oil specifically formulated and developed to meet the needs of: optimax and direct fuel injected (dfi) 2-cycle Outboard engines. Provides the maximum protection for optimax and dfi engines even under the most extreme operating conditions. Outperforms other oils by combining a carefully modified base stock blend with a synthetic additive package. Minimizes carbon build-up to help maintain engine top end speed and acceleration. Superior lubrication for increased resistance to piston scuffing. Will mix with typical 2-cycle engine oils. Provides warranty protection for Mercury and Mariner optimax and dfi outboards. ## Features - Mercury Optimax/DFI oil is recommended for use in Mercury and Mariner Optimax and direct fuel injected DFI 2-cycle outboards - Maximizes the performance of Mercury and Mariner Optimax and DFI engines where reduced oiling rates and higher operating temperatures put increased demands on lubricants - Synthetic additives provide increased lubricity and resistance to scuffing ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B003901RIM | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #14,918 in Automotive ( See Top 100 in Automotive ) #185 in Motor Oils | | Brand | MERCURY | | Brand Name | MERCURY | | Compatible with Vehicle Type | Mercury and Mariner Optimax and DFI 2-cycle outboard engines | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 833 Reviews | | Flash Point | 68 Degrees Celsius | | Global Trade Identification Number | 00745061038837 | | Included Components | oil | | Item Type Name | Mercury Optimax /DFI 2-Cycle Outboard Oil 1 Gallon 92-858037K01 | | Item Weight | 1 Pounds | | Liquid Volume | 1 Gallons | | Manufacturer | Mercury Marine | | Manufacturer Part Number | 92-858037K01 | | Manufacturer Warranty Description | No | | Model Number | 3005.4179 | | Package Information | Bottle | | Size | 1 Gallon | | UPC | 745061038837 | | Unit Count | 128.0 Fluid Ounces | | Vehicle Service Type | Mercury and Mariner Optimax and DFI 2-cycle outboard engines | ## Product Details - **Brand:** MERCURY - **Flash Point:** 68 Degrees Celsius - **Liquid Volume:** 1 Gallons - **Package Information:** Bottle - **Vehicle Service Type:** Mercury and Mariner Optimax and DFI 2-cycle outboard engines ## Images ![Optimax /DFI 2-Cycle Outboard Oil 1 Gallon 92-858037K01 - Image 1](https://m.media-amazon.com/images/I/81n9ACQzlEL.jpg) ## Questions & Answers **Q: can this oil be used in a 1994 mercury black max 200hp outboard?** A: This intended for use in Direct Injection outboards. Your 1994 Mercury 200HP Black Max uses Premium Plus (Recommended) or Premium Synthetic Blend. **Q: Is this a tcw3 oil? Is it better than quicksilver premium plus? Can I use it in my 2003 135 optimax?** A: It is not a TCW3 oil, it was formulated for hpdi (high pressure direct injection) engines, specificly Optimax. I use this oil exclusively in my 2002 optimax 135. I run only alcohol free gas and I add Mercury Quickare Fuel Treatment to every tank. **Q: Can i run this oil in my 1996/1997 mercury black max 150 hp efi** A: This oil is not recommended for EFI or carb motors. Use Premium Plus or Premium for your 1996/97 Black Max. **Q: How long does a gallon last in a 115 hp ?** A: depends on how much you use your boat. I fish about 4 to 6 times a month. a gallon would probably last me about 3 months. In my opinion, its the best oil for a Mercury. I have a Mercury 225 opti max ## Frequently Bought Together - Mercury Marine 92-858037K01 OptiMax/DFI 2-Cycle Outboard Oil - Mercury Quickleen Engine & Fuel System Cleaner - 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/1626665-optimax-dfi-2-cycle-outboard-oil-1-gallon-92-858037k01](https://www.desertcart.tn/products/1626665-optimax-dfi-2-cycle-outboard-oil-1-gallon-92-858037k01) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-26*