---
product_id: 75188598
title: "Quicksilver 25W-40 Synthetic Blend - Gallon"
brand: "quicksilver"
price: "1012 Lei"
currency: RON
in_stock: true
category: "Quicksilver"
url: https://www.desertcart.ro/products/75188598-quicksilver-25w-40-synthetic-blend-gallon
store_origin: RO
region: Romania
---

# 25W-40 viscosity for optimal engine flow Synthetic blend with superior corrosion & wear protection Specifically engineered for 4-stroke marine engines Quicksilver 25W-40 Synthetic Blend - Gallon

**Brand:** quicksilver
**Price:** 1012 Lei
**Availability:** ✅ In Stock

## Summary

> 🛥️ Power your marine adventures with Quicksilver’s synthetic edge!

## Quick Answers

- **What is this?** Quicksilver 25W-40 Synthetic Blend - Gallon by quicksilver
- **How much does it cost?** 1012 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/75188598-quicksilver-25w-40-synthetic-blend-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 by Thousands:** 4.8-star rating from over 1,700 marine pros who refuse to settle for less.
- • **Viscosity That Lasts:** Industry-leading viscosity retention means your engine stays protected even under extreme conditions.
- • **Marine-Grade Performance:** Tailored for high-rpm 4-stroke outboard motors to keep your boat running smooth and strong.
- • **OEM Certified Reliability:** Meets Mercury Marine specs ensuring perfect compatibility and peak engine protection.
- • **Ultimate Corrosion Defense:** Synthetic blend formula guards against rust and wear, extending engine life on every voyage.

## Overview

Quicksilver 25W-40 Synthetic Blend is a 1-gallon marine engine oil designed specifically for 4-stroke outboard motors. It meets Mercury Marine OEM standards, offering superior corrosion resistance, wear protection, and viscosity retention to ensure reliable, high-performance engine operation in demanding marine environments.

## 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 | #1,067 in Automotive ( See Top 100 in Automotive ) #23 in Motor Oils |
| Brand Name | Quicksilver |
| Compatible with Vehicle Type | Boat |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,733) |
| 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 |
| Size | 1-Gallon |
| UPC | 745061915572 745061915824 |
| Unit Count | 128.0 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 25W-40 Synthetic Blend - Gallon - Image 1](https://m.media-amazon.com/images/I/61KFdPGIarL.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

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**Shop now:** [https://www.desertcart.ro/products/75188598-quicksilver-25w-40-synthetic-blend-gallon](https://www.desertcart.ro/products/75188598-quicksilver-25w-40-synthetic-blend-gallon)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-08-04*