# 928M0078014 Mercury MerCruiser 8M0078014 4 Stroke Marine Engine oil 25W 50 | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Mercury 25W-50 Synthetic Blend FourStroke Marine Engine Oil 3.78L - Part Number: 92-8M0078014

  

Genuine Mercury 25W-50 synthetic blend high-performance FourStroke marine engine oil. This oil is formulated for high-heat, high-RPM marine engines including Mercury Racing four-stroke engines, Verado outboards and high-horsepower four-stroke marine engines where 25W-50 is specified.

  

⚙️ Key Features

  

• Genuine Mercury / Quicksilver high-performance marine oil

• Correct Mercury part number 92-8M0078014

• Listing references: 928M0078014 and 8M0078014

• SAE 25W-50 synthetic blend marine engine oil

• 3.78L / 1 US gallon container

• Designed for high-heat and high-RPM marine operation

• Recommended for Verado and Mercury Racing four-stroke applications where specified

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 92-8M0078014 current Mercury 25W-50 synthetic blend marine oil reference

• 8M0078014 short-form container reference

  

OEM / Related Numbers:

  

• 92-8M0078014

• 8M0078014

• 928M0078014

• Mercury Racing 25W-50

• Verado 25W-50 engine oil

• 25W-50 synthetic blend four-stroke oil

• High Performance 4-Stroke marine engine oil

• FC-W marine oil reference where 25W-50 is specified

  

Aftermarket / Verified Equivalents:

  

• FC-W certified 25W-50 marine four-stroke oil equivalents where the service chart permits

• High-performance synthetic blend 25W-50 marine oils may be used only when they meet the engine oil specification

• Use Mercury / Quicksilver 25W-50 where Mercury Racing, Verado or warranty service charts specify this oil

• Do not substitute automotive 25W-50 oil for marine FC-W service requirements

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury Verado FourStroke outboards

• Mercury Racing four-stroke outboards

• Mercury FormulaRace applications

• High-output MerCruiser Racing sterndrive engines

• Non-catalysed high-horsepower four-stroke marine engines where 25W-50 is specified

  

Typically suits:

  

• Engine models:

• Mercury Verado L4 supercharged outboards where 25W-50 is specified

• Mercury Verado L6 supercharged outboards where 25W-50 is specified

• Mercury 350 SCi Verado applications where specified

• Mercury Verado 350 applications where specified

• Mercury 400R L6 Racing / Verado applications where specified

• Mercury Racing FormulaRace four-stroke applications

• Mercury Racing four-stroke outboards requiring 25W-50

• Mercury Racing 525 EFI through 1650 sterndrive applications where 25W-50 is specified

• High-performance four-stroke marine engines operating under high load and high RPM where the service chart lists 25W-50

  

• Engine Type: Mercury / Mercury Racing FourStroke and high-performance marine petrol engines

• System Type: Engine lubrication oil

• Oil Grade: SAE 25W-50 synthetic blend

• Container Size: 3.78L

  

🔌 Function

  

The oil lubricates internal engine components, maintains film strength under high heat and load, and protects against wear, corrosion and viscosity breakdown in demanding marine operation.

  

Common service use:

  

• Scheduled oil changes on Verado and Mercury Racing engines

• High-RPM / high-load marine service

• Oil top-up with matching 25W-50 grade

• Seasonal service

• Replacement after fuel or water contamination

• Use when the engine service chart specifies 25W-50

  

📦 Condition

  

• Genuine Mercury / Quicksilver oil

• Brand new

• Supplied sealed in original 3.78L container

## Details

- **Price:** 93.75 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 93.75 AUD | In stock |

## Images

- 928M0078014 Mercury MerCruiser 8M0078014 4 Stroke Marine Engine oil 25W 50 | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/928m0078014-mercury-mercruiser-8m0078014-4-stroke-marine-engine-oil-25w-50-genuine-quicksilver-oem-part)
> Updated: 2026-07-18