--- product_id: 395946708 title: "Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart" brand: "quicksilver" price: "966 DH" currency: MAD in_stock: true reviews_count: 5 category: "Quicksilver" url: https://www.desertcart.ma/products/395946708-quicksilver-85w-90-extreme-performance-gear-lube-1-quart store_origin: MA region: Morocco --- # Advanced emulsifiers defend against water intrusion High-temp stability prevents horsepower loss 85W-90 weight for extreme gear protection Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart **Brand:** quicksilver **Price:** 966 DH **Availability:** ✅ In Stock ## Summary > ⚙️ Gear up with Quicksilver: Where performance meets precision. ## Quick Answers - **What is this?** Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart by quicksilver - **How much does it cost?** 966 DH with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/395946708-quicksilver-85w-90-extreme-performance-gear-lube-1-quart) ## 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 - • **Heat-Resistant Power:** Maintains integrity under extreme temperatures to preserve horsepower and performance. - • **Race-Ready Viscosity:** Precision 85W-90 formula engineered for outboard and sterndrive racing performance. - • **Unmatched Wear Defense:** Tackifiers and pressure additives create a resilient oil film that drastically reduces gear wear. - • **Water-Guard Technology:** Advanced emulsifiers protect gears even if water enters the housing—marine-grade reliability. - • **OEM-Approved Excellence:** Developed and tested by Mercury Marine to meet the highest original equipment standards. ## Overview Quicksilver 85W-90 Extreme Performance Gear Lube is a premium marine-grade lubricant designed specifically for high-performance outboard and sterndrive racing gear cases. Featuring advanced tackifiers, pressure additives, and emulsifiers, it ensures maximum wear protection, heat stability, and water resistance. Developed by Mercury Marine to meet stringent OEM specs, this 1-quart oil delivers race-proven reliability and power preservation for marine, powersports, and motorsports applications. ## Description Extreme Performance Gear Lube 8M011677 is 85W90 weight for use in outboard and sterndrive racing applications. Also for use in high‑performance gear cases used in marine, powersports, and motorsports applications. Provides maximum protection against wear. Its tackifiers and pressure additives improve oil film adhesion and protect against excessive wear. Helps prevent horsepower loss and won’t break down when gears reach high temperatures. Advanced emulsifiers protect gears if water enters the gear housing. Should be changed once each year when winterizing the engine or every 100 hours of operation. 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. Review: This is a US quart which is much smaller than a UK quart. - Should have read the advert line by line and zoomed in on the picture of the label. I ordered this of desertcart.co.uk and paid in £ and where I come from (UK) a quart is 1.14 litres. This is a US quart which is only 0.946 litres. I got less than 3/4 of the amount I expected. Can't fault the product, but selling in a UK market with US units is misleading. Disappointed. Review: Great product - Exactly what I was looking for ## Features - Designed for outboard and sterndrive racing application - Also for use in high‑performance gear cases used in marine, powersports, and motorsports applications. - Provides maximum protection against wear - Its tackifiers and pressure additives improve oil film adhesion and protect against excessive wear - Advanced emulsifiers protect gears if water enters the gear housing - Developed & tested by Mercury Marine to our stringent original equipment manufacturer specifications to maximize the performance of your marine engine ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B078HCCWVV | | Brand | Quicksilver | | Brand Name | Quicksilver | | Customer Reviews | 4.8 out of 5 stars 158 Reviews | | Global Trade Identification Number | 00745061959569 | | Item Form | Oil | | Item Weight | 3.18 kg | | Item form | Oil | | Item weight | 3.18 kg | | Liquid Volume | 1 Quarts | | Liquid volume | 1 Quarts | | Model Number | 8M0111677 | | Number of Items | 1 | | Part Number | 8M0111677 | | UPC | 745061959569 | | Unit Count | 946.3529 Milliliters | | Unit count | 946.3529 Milliliters | ## Product Details - **Brand:** Quicksilver - **Global Trade Identification Number:** 00745061959569 - **Item weight:** 7 Pounds - **Liquid volume:** 1 Quarts - **Unit count:** 946.3529 Milliliters ## Images ![Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart - Image 1](https://m.media-amazon.com/images/I/71HcmcgigTL.jpg) ![Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart - Image 2](https://m.media-amazon.com/images/I/81Gj4NAR9HL.jpg) ![Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart - Image 3](https://m.media-amazon.com/images/I/81GjMNmzk+L.jpg) ![Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart - Image 4](https://m.media-amazon.com/images/I/81ssfPaqxfL.jpg) ![Quicksilver 85W-90 Extreme Performance Gear Lube - 1 Quart - Image 5](https://m.media-amazon.com/images/I/81KihxBiHLL.jpg) ## Questions & Answers **Q: Is this oil GL4?** A: Hello! GL-4 is a multipurpose, extreme-pressure, API GL-4 automotive gear lubricant which isn't a ranking for our oils. Thank you, Quciksilver Support Team **Q: Is this oil g5 rated** A: Yes **Q: Can i use it for mercury fourstroke 150hp efi?** A: This oil is for the outdrive not the motor. **Q: what color is this oil ?** A: Brown ## Customer Reviews ### ⭐⭐⭐ This is a US quart which is much smaller than a UK quart. *by M***N on 27 May 2025* Should have read the advert line by line and zoomed in on the picture of the label. I ordered this of Amazon.co.uk and paid in £ and where I come from (UK) a quart is 1.14 litres. This is a US quart which is only 0.946 litres. I got less than 3/4 of the amount I expected. Can't fault the product, but selling in a UK market with US units is misleading. Disappointed. ### ⭐⭐⭐⭐⭐ Great product *by S***T on 2 August 2025* Exactly what I was looking for ### ⭐⭐⭐⭐⭐ High quality product at a much more reasonable price than the Mercury name brand. *by J***E on 10 May 2024* A week before launching our boat I noticed the outdrive lube was a little low. Having this delivered so quickly and being able to get it at such a better price than the Mercury brand was really nice. ## Frequently Bought Together - Quicksilver 85W-90 Extreme Performance Gear Lube - Quicksilver by Mercury Marine 25W-40 Marine Engine Oil - Slippery Pete - Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch Metal Swivel, 8mm and 10mm Adapters Fit Most Marine Boat Outboard Motors (NOT COMPATIBLE WITH VOLVO PENTA) --- ## 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.ma/products/395946708-quicksilver-85w-90-extreme-performance-gear-lube-1-quart](https://www.desertcart.ma/products/395946708-quicksilver-85w-90-extreme-performance-gear-lube-1-quart) --- *Product available on Desertcart Morocco* *Store origin: MA* *Last updated: 2026-07-25*