Mercury MerCruiser Synthetic 10W-30 Oil 1L 8M0142141
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You have 30 days to request a return. All sale items are final sale.
Maintain proper lubrication and engine protection with the Mercury MerCruiser Synthetic 10W-30 Oil 1L 8M0142141. This genuine Mercury Marine OEM synthetic blend engine oil is specifically formulated for marine 4-stroke engines operating in harsh environments and high-load conditions.
The advanced synthetic blend formula provides excellent resistance to viscosity breakdown, helping maintain consistent lubrication even at high RPM and elevated temperatures. Mercury’s specialized additive package includes advanced corrosion inhibitors and wear protection designed specifically for marine engines, ensuring reliable performance both during operation and seasonal storage.
Key Features
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Genuine Mercury Marine OEM marine engine oil
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SAE 10W-30 synthetic blend formulation
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Designed specifically for 4-stroke marine engines
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Provides strong resistance to viscosity breakdown under high load
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Advanced corrosion inhibitors exceed FC-W standards
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Provides up to 33% greater camshaft wear protection compared to other marine oils
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Ideal for both regular operation and seasonal storage protection
Part Details
OEM Part Number: 8M0142141
Mercury Reference Number: 92-8M0142141
Product Type: 4-Stroke marine engine oil
Viscosity: SAE 10W-30
Oil Type: Synthetic blend marine engine oil
Container Size: 1 Quart (946 ml / ~1L)
Typical Packaging: Individual bottle
Compatible Mercury & MerCruiser Engines
Designed for 4-stroke marine engines requiring SAE 10W-30 oil, including:
Mercury Outboards
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Mercury 4-Stroke outboards up to 150HP
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Mercury 3.4L V6 outboards (175–225 HP)
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Mercury 4.6L V8 outboards (200–300 HP)
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Mercury Pro XS, Verado, and SeaPro models where 10W-30 is specified
MerCruiser Engines
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MerCruiser 4-stroke gasoline inboard and sterndrive engines requiring SAE 10W-30 marine oil
Always follow the engine manufacturer’s recommended oil specification.
Function
Marine engine oil lubricates internal engine components while helping manage heat, friction, and corrosion. The specialized additive package in Mercury marine oil is designed specifically for the higher loads and moisture exposure found in marine engines.
Using the correct marine oil helps:
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Protect internal engine components from wear
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Maintain proper lubrication under high RPM
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Reduce thermal breakdown of oil
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Prevent corrosion in marine environments
Important Compatibility Note
Marine engines require oils that meet FC-W marine certification standards. Always verify the correct oil viscosity and specification in your engine owner’s manual or by serial number before use.
Cross-Stock / Reference Part Numbers
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Mercury Reference Number: 92-8M0142141
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Gallon Size Equivalent: 8M0142151
Shipping: Ships same or next day for fast Canada wide shipping. âš“
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.