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Item#:
R50
Manufacturer:
Klotz
Available:
In Stock
Your Price:
21.50
Each
All Watercraft
Item#:
BENOL
Manufacturer:
Klotz
Available:
In Stock
Your Price:
21.99
Each
Yamaha Watercraft
Item#:
LUB-10W40-WV-04
Cross Reference#:
LUB-10W40-WV-04
Manufacturer Item:
LUB-10W40-WV-04
Manufacturer:
Yamaha Outboard
Available:
In Stock
Your Price:
31.99
Each
Yamaha Watercraft
Item#:
LUB-10W40-WV-12
Cross Reference#:
LUB-10W30-WV-12
LUB-10W40-WV-12
Manufacturer Item:
LUB-10W30-WV-12
Manufacturer:
Yamaha Outboard
Available:
In Stock
Your Price:
10.99
Each
Full Synthetic 10W30 Marine Oil for Mercury 4-Stroke Engines

Mercury SAE 10W30 Full Synthetic Marine Engine Oil

Mercury 10W30 Full Synthetic 4-Stroke Marine Engine Oil

Mercury 8M0173224 SAE 10W30 Full Synthetic Marine Engine Oil is designed for customers wanting maximum protection for compatible non-catalyzed Mercury 4-stroke marine engines.

This advanced full synthetic marine oil formula delivers outstanding viscosity retention, corrosion protection, thermal stability, and engine wear protection across a broad range of marine operating conditions.

Compatible Applications

Engine Type Application Oil Type
4-Stroke Outboards Compatible non-catalyzed Mercury outboards SAE 10W30 Full Synthetic
Sterndrives Compatible non-catalyzed Mercury sterndrive engines SAE 10W30 Full Synthetic
Inboard Engines Compatible non-catalyzed Mercury inboards SAE 10W30 Full Synthetic
Important Compatibility Note:

Mercury SAE 10W30 Full Synthetic marine engine oil is intended for non-catalyzed 4-stroke marine engines.

Always verify the recommended oil viscosity and specification in your owner's manual before use.

Why Use Mercury Full Synthetic Marine Oil?

Mercury SAE 10W30 Full Synthetic marine engine oil is formulated to provide maximum protection for hard-working marine engines operating under heavy loads and harsh marine conditions.

Compared to Mercury 10W30 synthetic blend marine oil, this advanced full synthetic formula includes:

  • 49% more anti-wear additives
  • 45% more dispersants
  • 24% more detergents

The result is outstanding protection against corrosion, sludge formation, varnish buildup, engine wear, and thermal breakdown.

Elevated ZDDP levels and Mercury's advanced multi-grade formulation help improve shear resistance and viscosity retention across a broad range of temperatures and marine operating conditions.

Key Features and Benefits

  • Mercury SAE 10W30 Full Synthetic marine engine oil
  • Designed for non-catalyzed 4-stroke marine engines
  • Suitable for outboards, sterndrives, and inboards
  • Advanced full synthetic marine oil formulation
  • Outstanding viscosity retention for maximum engine protection
  • Enhanced protection against engine wear and thermal breakdown
  • Elevated zinc and phosphorous levels for anti-wear protection
  • Helps reduce sludge and varnish buildup
  • Excellent corrosion protection for marine environments
  • Compatible with mineral and synthetic blend 10W30 formulas
  • Safe upgrade path from conventional or synthetic blend oil

Oil Specifications

Specification Details
Part Number 8M0173224
Oil Type Full Synthetic Marine Engine Oil
Viscosity SAE 10W30
Application Non-Catalyzed 4-Stroke Marine Engines
Engine Types Outboards, Sterndrives, and Inboards
Additive Package Elevated ZDDP / Marine Anti-Wear Formula
Compatibility Compatible with mineral and synthetic blend 10W30 oils

What This Oil is Used For

Mercury SAE 10W30 Full Synthetic marine engine oil is designed for high-performance lubrication and protection of compatible non-catalyzed 4-stroke marine engines.

Marine engines operate under higher sustained loads and more demanding conditions than many automotive applications. This full synthetic formula is engineered to help maintain viscosity stability, corrosion protection, and wear resistance in harsh marine environments.

It is commonly used in compatible Mercury outboards, sterndrives, and inboard engines requiring SAE 10W30 marine oil.

FAQ

What engines can use Mercury SAE 10W30 Full Synthetic oil?
This oil is designed for compatible non-catalyzed 4-stroke outboards, sterndrives, and inboard marine engines.

Is this oil full synthetic?
Yes. Mercury 8M0173224 is a full synthetic marine engine oil.

Can this oil be mixed with synthetic blend or conventional oil?
Yes. Mercury states this oil is compatible with mineral and synthetic blend 10W30 formulas for safe upgrading.

What makes this oil different from Mercury synthetic blend oil?
This full synthetic formula contains increased anti-wear additives, dispersants, and detergents for improved engine protection and performance.

Does this oil help protect against corrosion?
Yes. This formula is specifically designed to help protect marine engines against corrosion, thermal breakdown, sludge, and engine wear.

Should I verify viscosity before use?
Yes. Always verify the correct oil viscosity and specification recommended by your engine manufacturer before use.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

  • Free shipping on orders over $100 continental U.S.
  • Orders ship via UPS, USPS, and FedEx.
  • Orders received before 5:30 PM EST ship the same business day.
  • Typical delivery time is 1–5 business days.

30-Day Return Policy

  • Returns accepted within 30 days of delivery.
  • Items must be new and unopened in original packaging.
  • Opened oil and lubricants may not be returnable.
  • Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000


Searchable Terms

8M0173224, Mercury 10W30 full synthetic oil, Mercury SAE 10W30 marine engine oil, Mercury full synthetic marine oil, Mercury 4-stroke marine oil, Mercury sterndrive oil, Mercury inboard engine oil, Mercury outboard oil, Mercury full synthetic 10W30, Mercury marine lubricant, Mercury engine oil, Mercury synthetic marine oil, SAE 10W30 marine oil, Mercury ZDDP marine oil, Mercury non-catalyzed engine oil

Item#:
8M0173224
Manufacturer Item:
8M0173224
Manufacturer:
Mercury Marine
Available:
Out of Stock
ETA:
06/04/2026
Your Price:
84.99
Each
Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard applications, this 4-stroke synthetic blend 10W-30 marine engine oil has been extensively tested to ensure impressive protection against corrosion and wear. Exceeds all marine industry 4-stroke oil requirements including FC-W and FC-W Catalyst Compatible.
  • Formulated to protect against corrosion and excessive wear
  • Designed for use with all four-stroke marine engines when 10W-30 is recommended
  • Offers outstanding strength and viscosity retention
  • 1-gallon bottle
  • Produced by Mercury Marine to Mercury's stringent original equipment manufacturer specifications
  • Mercury oils, lubricants and engine care products are backed by decades of experience in engineering, testing and manufacturing to provide the best protection and performance.
Item#:
8M0142151
Cross Reference#:
8M0142151
Manufacturer Item:
8M0142151
Manufacturer:
Mercury Marine
Available:
In Stock
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Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard applications, this 4-stroke synthetic blend 10W-30 marine engine oil has been extensively tested to ensure impressive protection against corrosion and wear. Exceeds all marine industry 4-stroke oil requirements including FC-W and FC-W Catalyst Compatible.
  • Formulated to protect against corrosion and excessive wear
  • Designed for use with all four-stroke marine engines when 10W-30 is recommended
  • Offers outstanding strength and viscosity retention
  • 1-Quart bottle
  • Produced by Mercury Marine to Mercury's stringent original equipment manufacturer specifications
  • Mercury oils, lubricants and engine care products are backed by decades of experience in engineering, testing and manufacturing to provide the best protection and performance.
Item#:
8M0142141
Cross Reference#:
8M0142141
Manufacturer Item:
8M0142141
Manufacturer:
Mercury Marine
Available:
In Stock
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Synthetic Blend Oil for Verado and High-Performance Mercury Engines

OEM Mercury High-Performance Marine Engine Oil

Mercury SAE 25W50 Synthetic Blend Marine Engine Oil - 1 Quart

Mercury 8M0078013 is a premium SAE 25W50 synthetic blend 4-stroke marine engine oil designed for Mercury Verado, Mercury Racing, FormulaRace, and other high-performance marine engines where Mercury specifies 25W50 FC-W marine oil.

This OEM Mercury marine oil helps provide excellent wear protection, corrosion resistance, viscosity stability, and sludge protection under demanding marine operating conditions.

Recommended Applications

Engine Family Application Oil Specification Notes
Mercury Verado 4-Stroke Outboards SAE 25W50 FC-W Use where Mercury specifies 25W50 oil
Mercury Racing High-Performance Outboards SAE 25W50 FC-W Recommended for Racing 4-stroke applications
FormulaRace Engines Performance Marine Engines SAE 25W50 FC-W OEM Mercury recommendation
Mercury Racing Sterndrives 525 EFI through 1650 SAE 25W50 FC-W High-horsepower sterndrive applications
OEM Mercury Formula:

Mercury 25W50 marine engine oil is engineered specifically for high-load marine applications and is formulated to help protect against corrosion, varnish buildup, sludge formation, and viscosity breakdown in harsh marine environments.

This oil meets or exceeds FC-W marine oil requirements when SAE 25W50 oil is specified by Mercury Marine.
Important Application Note:

Always verify your owner's manual or service manual before ordering. Mercury uses multiple oil viscosities depending on engine family, horsepower range, operating temperature, and application.

This oil is specifically intended for applications where SAE 25W50 marine oil is required.

Available Oil Size Options

Oil Package Product Best For
1 Quart Bottle Mercury 25W50 Marine Oil - 1 Quart Top-offs, smaller oil changes, adding exact quantities
1 Gallon Jug Mercury Verado 25W50 Oil - 1 Gallon Full oil changes and multi-engine service

Complete Your Service

What This Oil is Used For

Mercury 8M0078013 SAE 25W50 marine engine oil is used in high-performance Mercury marine engines requiring FC-W rated 25W50 oil protection.

It is commonly used in Mercury Verado outboards, Mercury Racing outboards, FormulaRace engines, and Mercury Racing sterndrive applications.

Mercury formulated this oil specifically for marine operating conditions, including sustained RPM operation, moisture exposure, corrosion resistance, and high engine loads.

This quart bottle is ideal for topping off engines, carrying onboard, or combining with gallon containers for complete oil changes.

Key Features and Benefits

  • OEM Mercury Marine engine oil
  • SAE 25W50 synthetic blend formulation
  • Designed for high-performance marine engines
  • Recommended for Mercury Verado applications
  • Recommended for Mercury Racing outboards and sterndrives
  • Provides excellent wear and corrosion protection
  • Helps resist sludge and varnish buildup
  • Maintains viscosity under demanding operating conditions
  • Meets or exceeds FC-W marine oil requirements
  • 1 quart bottle size

Oil Details

  • Part Number: 8M0078013
  • Mercury Number: 92-8M0078013
  • Oil Type: Synthetic Blend Marine Engine Oil
  • Viscosity: SAE 25W50
  • Certification: FC-W Marine Oil
  • Container Size: 1 Quart
  • Brand: Mercury Marine
  • Application: High-Performance 4-Stroke Marine Engines

FAQ

Is this the correct oil for Mercury Verado engines?
Yes, this oil is commonly recommended for Mercury Verado outboards where Mercury specifies SAE 25W50 FC-W marine engine oil.

Is this a full synthetic oil?
No. Mercury 8M0078013 is a synthetic blend marine engine oil.

Does this oil meet FC-W requirements?
Yes. This oil meets or exceeds marine engine manufacturer warranty requirements and recommendations for FC-W marine engine oil when SAE 25W50 is specified.

Can I use this in Mercury Racing applications?
Yes. Mercury specifically recommends this oil for many Mercury Racing four-stroke outboards and sterndrive engines.

How much oil does my engine require?
Oil capacity varies by engine model and application. Always check your owner's manual or service manual for exact oil quantity requirements.

Is this sold in larger containers?
Yes. Mercury also offers this oil in a 1 gallon container, linked above.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or marine industry professional? We offer dealer pricing for qualified businesses.

Apply for a Dealer Account

Shipping Policy

  • Free shipping on orders over $100 continental U.S.
  • Orders ship via UPS, USPS, and FedEx.
  • Orders received before 5:30 PM EST ship the same business day.
  • Typical delivery time is 1–5 business days.

30-Day Return Policy

  • Returns accepted within 30 days of delivery.
  • Oil and lubricants must be unopened and unused for return eligibility.
  • Return authorization is required before sending items back.

Need help with a return or product question?
Contact Us
Phone: 941-721-3000


Searchable Terms

8M0078013, 92-8M0078013, Mercury 25W50 oil, Mercury Verado oil, Mercury Racing oil, Mercury marine engine oil, Mercury 25W50 synthetic blend oil, Verado engine oil, Mercury Racing sterndrive oil, FormulaRace oil, Mercury FC-W oil, Mercury high-performance marine oil, Mercury 25W50 quart

Item#:
8M0078013
Cross Reference#:
8M0053662
8M0053665
8M0078013
Manufacturer Item:
8M0053665
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
24.99
Each
Item#:
8M0173223
Cross Reference#:
8M0173223
Manufacturer Item:
8M0173223
Manufacturer:
Mercury Marine
Available:
Out of Stock
ETA:
06/05/2026
Your Price:
28.99
Each
Mercury MRX Racing Full Synthetic
Item#:
8M0169265
Cross Reference#:
8M0169265
Manufacturer Item:
8M0169265
Manufacturer:
Mercury Marine
Available:
Out of Stock
ETA:
06/05/2026
Your Price:
135.99
Each
Mercury 4 Stroke Mercruiser
Item#:
8M0078630
Cross Reference#:
18-9440-4P
8M0051369
8M0061369
8M0061424
8M0078623
8M0078630
8M0078636
8M0078642
8401661
845282
8452821
857493A01
857493A1
857495A01
857495A1
858053KC1
858053K01
858053QC1
858053Q01
858056KC1
858056K01
858056QC1
858056Q01
858088KC1
858088K01
858088Q01
883723K01
883723Q01
883725K01
883725Q01
Manufacturer Item:
8M0078630
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
70.99
Each
Mercury 4-Stroke 10W30
Item#:
8M0078626
Cross Reference#:
0460787
0504080
0504081
0764364
0764365
0765720
0772733
0775594
0775597
0779434
18-9420-3
18-94203
764365
765720
779434
8M0078616
8M0078617
8M0078618
8M0078625
8M0078626
8M0078632
8M0078638
802833A1
802833A40
802833Q1
802833Q40
802835A1
802835A30
802835Q1
802835Q30
802836A1
802836A4
802836Q1
802836Q4
828000A40
828002A40
857391A01
857391A1
857471A1
858045K01
858045Q01
858046KC1
858046K01
858046QB1
858046QC1
858046Q01
858047KC1
858047K01
858047QC1
858047Q01
883696A01
883696A1
883697A1
9-82351
Manufacturer Item:
8M0078626
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
55.99
Each
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