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Mercury 25W-50 Verado & Racing Oil - 1 Gallon
Verado Synthetic Blend
| Quantity | Price |
| 1 | 84.99 |
OEM Mercury High-Performance Marine Engine Oil
Mercury SAE 25W50 Synthetic Blend Marine Engine Oil - 1 Gallon
Mercury 858084 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 gallon-size OEM Mercury marine oil provides outstanding wear protection, corrosion resistance, viscosity stability, and sludge protection for demanding marine applications and high-horsepower engines.
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 |
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.
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 Gallon Jug | Mercury Verado 25W50 Oil - 1 Gallon | Complete oil changes and multi-engine service |
| 1 Quart Bottle | Mercury 25W50 Marine Oil - 1 Quart | Top-offs and adding exact oil quantities |
Complete Your Service
Mercury 25W50 Oil - 1 Quart
OEM Mercury SAE 25W50 synthetic blend marine engine oil quart bottle for topping off or combining with gallon containers for complete oil changes.
View Product
Mercury 4-Stroke Service Kits
Shop OEM Mercury 4-stroke service kits including oil change kits, 100 hour kits, and 300 hour maintenance kits for Verado and FourStroke engines.
View Service KitsWhat This Oil is Used For
Mercury 858084 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.
The gallon container is ideal for complete oil changes, multi-engine boats, dealer service departments, and customers maintaining larger Mercury outboards and sterndrive engines.
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 gallon container size
Oil Details
- Part Number: 858084
- Oil Type: Synthetic Blend Marine Engine Oil
- Viscosity: SAE 25W50
- Certification: FC-W Marine Oil
- Container Size: 1 Gallon
- 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 858084 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.
Can I combine this gallon with quart bottles?
Yes. Many larger Mercury engines require additional quarts beyond a single gallon, so customers often combine gallon and quart containers for complete oil changes.
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.
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
858084, Mercury 25W50 oil, Mercury Verado oil, Mercury Racing oil, Mercury marine engine oil, Mercury 25W50 gallon, Verado engine oil, Mercury Racing sterndrive oil, FormulaRace oil, Mercury FC-W oil, Mercury high-performance marine oil, Mercury 25W50 gallon jug, Mercury Verado gallon oil
Oil
Mercury Verado
Synthetic Blend
8M0053665
8M0078013
8M0058934
889246Q39
889680001
0173242
0174979
0174980
0488084
0500711
0500712
0500716
0508318
0765723
0765724
0765725
0766155
0766156
0770795
0772082
0772083
0775599
0775600
0775601
0775603
0775604
0778746
0778747
0778749
0778755
0779479
0779750
0779751
1141679
13783A24
173241
173242
174979
174980
18-9650-2
19007A24
3810106
3810251
3851128
488084
500711
500712
500716
508318
703-48205-10-00
703-48205-11-00
703-48205-12-00
703-48205-13-00
703-48207-10-00
703-48207-11-00
703-48207-12-00
75580A24
7558024
765723
765724
765725
766155
766156
770795
772082
772083
775599
775600
775601
775603
775604
778746
778747
778749
778755
779479
779750
779751
8M0059254
8M0059255
8M0061425
8M0075303
8M0219575
8M0222063
8M0222064
8M0222065
8M0222066
8M0222070
802844Q02
802851Q02
802854A1
802854A40
802854Q1
802854Q40
816026A4
8160261
850743A1
850743A40
858064KC1
858064K01
858064QB1
858064QC1
858064Q01
883667A1
883678A1
Mercury Verado 200-400hp Inline 6 Models
877769K01
877769Q01
883701K01
9-57816
Mercury 200-400Hp Verado
4-Stroke 6 cyl.
8M0095659
8M0095659
8M0157616
8M0157620