---
product_id: 18858215
title: "Quicksilver 25W-40 - Gallon"
brand: "quicksilver"
price: "30.52 OMR"
currency: OMR
in_stock: true
category: "Quicksilver"
url: https://www.desertcart.com.om/products/18858215-quicksilver-25w-40-gallon
store_origin: OM
region: Oman
---

# 25W-40 viscosity for optimal engine flow Superior corrosion & wear protection Specifically engineered for 4-stroke marine engines Quicksilver 25W-40 - Gallon

**Brand:** quicksilver
**Price:** 30.52 OMR
**Availability:** ✅ In Stock

## Summary

> 🛥️ Power your marine adventures with Quicksilver’s precision-engineered 25W-40 oil!

## Quick Answers

- **What is this?** Quicksilver 25W-40 - Gallon by quicksilver
- **How much does it cost?** 30.52 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/18858215-quicksilver-25w-40-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

- • **Trusted Quality:** Meets Mercury Marine original equipment manufacturer specs, guaranteeing premium protection and durability.
- • **Optimized Viscosity:** 25W-40 viscosity formula tailored to maintain high-rpm 4-stroke outboard motor efficiency under demanding conditions.
- • **Ready for the Water:** 1-gallon container designed for easy handling and long-lasting marine engine maintenance.
- • **Marine-Grade Performance:** Direct OEM replacement for Mercury Marine 8M0078628 ensures seamless compatibility and peak engine reliability.
- • **Ultimate Engine Protection:** Advanced corrosion resistance and wear modifiers extend engine life and maintain performance on every voyage.

## Overview

Quicksilver 25W-40 4-Stroke Marine Engine Oil is a 1-gallon premium motor oil designed specifically for 4-stroke marine engines. It offers superior corrosion resistance and wear protection, optimized viscosity for high-rpm outboard motors, and meets Mercury Marine OEM specifications to ensure reliable, peak engine performance on every trip.

## Description

Buy Quicksilver 25W-40 4-Stroke Marine Engine Oil, 1 Gallon: Motor Oils - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Direct replacement for Mercury Marine 8M0078628
- Designed for use in 4-stroke marine engines
- Formulated to provide superior corrosion resistance and wear protection to maintain peak engine performance and reliability
- Special viscosity modifiers help to optimize the performance of high-rpm 4-stroke outboard motors
- 25W-40 viscosity
- Produced to meet Mercury Marine original equipment manufacturer specifications to best protect your outboard
- Manufacturer part number 8M0078620

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00N6DF8SW |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #877 in Automotive ( See Top 100 in Automotive ) #22 in Motor Oils |
| Brand Name | Quicksilver |
| Compatible with Vehicle Type | Marine Vehicles |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,727) |
| Global Trade Identification Number | 00745061915527 |
| Included Components | End Product & Information |
| Item Type Name | 25W-40 Oil |
| Item Weight | 7 Pounds |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Quicksilver |
| Manufacturer Part Number | 8M0078620 |
| Model Number | 8M0078620 |
| Size | 1-Gallon |
| UPC | 745061915787 745061915527 |
| Unit Count | 128.0 Fluid Ounces |
| Viscosity Level | Medium to High |

## Product Details

- **Brand:** Quicksilver
- **Liquid Volume:** 128 Fluid Ounces
- **Package Information:** Bottle
- **UPC:** 745061915787 745061915527
- **Vehicle Service Type:** Marine Vehicles

## Images

![Quicksilver 25W-40 - Gallon - Image 1](https://m.media-amazon.com/images/I/61DkqhBDE5L.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 802893Q01 Water Separating Fuel Filter for Mercury and Mariner Outboards and MerCruiser Stern Drive and Inboard Engines

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**Shop now:** [https://www.desertcart.com.om/products/18858215-quicksilver-25w-40-gallon](https://www.desertcart.com.om/products/18858215-quicksilver-25w-40-gallon)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-07-04*