---
product_id: 395946708
title: "85W-90 Extreme Performance Gear Lube - 1 Quart"
brand: "quicksilver"
price: "€ 57.93"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/395946708-85w-90-extreme-performance-gear-lube-1-quart
store_origin: ES
region: Spain
---

# Advanced emulsifiers guard against water damage High-temp stability prevents breakdown under stress 85W-90 viscosity for optimal gear protection 85W-90 Extreme Performance Gear Lube - 1 Quart

**Brand:** quicksilver
**Price:** € 57.93
**Availability:** ✅ In Stock

## Summary

> ⚡ Gear up with Quicksilver – where performance meets precision!

## Quick Answers

- **What is this?** 85W-90 Extreme Performance Gear Lube - 1 Quart by quicksilver
- **How much does it cost?** € 57.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/395946708-85w-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

- • **Race-Ready Viscosity:** Precision 85W-90 weight engineered for extreme marine and motorsport gear cases.
- • **OEM-Tested Excellence:** Developed and rigorously tested by Mercury Marine to meet the highest original equipment standards.
- • **Water-Resistant Defense:** Cutting-edge emulsifiers shield gears from water intrusion, ensuring peak performance in wet conditions.
- • **Unmatched Wear Protection:** Tackifiers and pressure additives form a resilient oil film to minimize gear wear and horsepower loss.
- • **Annual Maintenance Made Easy:** Recommended yearly or every 100 hours to keep your engine running smooth and race-ready.

## Overview

Quicksilver 85W-90 Extreme Performance Gear Lube is a premium marine-grade lubricant designed for outboard and sterndrive racing applications. Engineered with advanced additives and emulsifiers, it delivers superior wear protection, high-temperature stability, and water resistance. Developed by Mercury Marine to meet stringent OEM specs, this 1-quart gear lube ensures your high-performance gear cases operate at peak efficiency, making it the trusted choice for marine, powersports, and motorsports professionals.

## 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.

## 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 |
|---------------|-------|
| Manufacturer | Quicksilver |
| Brand | Quicksilver |
| Model | 85W-90 Extreme Performance Gear Lube - 1 Quart |
| Package Dimensions | 23.39 x 10.69 x 5.59 cm; 3.18 kg |
| Item model number | 8M0111677 |
| Manufacturer Part Number | 8M0111677 |
| Item Weight | 3.18 Kilograms |
| Viscosity | 85w-90 |

## Product Details

- **Material:** Various Materials
- **Brand:** Quicksilver
- **Package information:** Bottle
- **Liquid volume:** 1 Quarts
- **Item weight:** 3.18 kg

## Images

![85W-90 Extreme Performance Gear Lube - 1 Quart - Image 1](https://m.media-amazon.com/images/I/71HcmcgigTL.jpg)

## Available Options

This product comes in different **Style** options.

## 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

## 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)

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**Shop now:** [https://www.desertcart.es/products/395946708-85w-90-extreme-performance-gear-lube-1-quart](https://www.desertcart.es/products/395946708-85w-90-extreme-performance-gear-lube-1-quart)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-29*