Mercury Quicksilver Full Synthetic 2-Stroke PWC Marine Engine Oil 8M0058908 – 1 Gallon
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Mercury Quicksilver Full Synthetic 2-Stroke PWC Marine Engine Oil – 1 Gallon
Part Number: 8M0058908 (92-8M0058908)
Brand: Mercury / Quicksilver
GTIN: 745061677081
Product Overview
A full synthetic 2-stroke marine engine oil formulated for personal watercraft and sport-boat engines. Designed for clean combustion, strong detergency, corrosion protection, and low smoke output while helping keep piston rings and power-valve components free of deposits.
- Package size: 1 gallon
- Oil type: Full synthetic 2-stroke
- Meets or exceeds JASO FD and ISO EGD
- Suitable for oil-injected or premix applications
- Clean-burning, low-smoke formulation
Compatible Applications
- 2-stroke personal watercraft (PWC) engines
- 2-stroke sport-boat engines
- Oil-injection systems
- Premix applications (at manufacturer-specified ratio)
Fitment Note: Confirm your engine manufacturer's lubricant specification before use. This oil is formulated for 2-stroke PWC and sport-boat engines and should not be used in 4-stroke crankcase applications or where Mercury DFI/OptiMax oil is specifically required.
Application Notes
- Oil-injected engines: Fill the oil reservoir per the engine manufacturer's procedure
- Premix applications: Mix with gasoline at the ratio specified for your engine — do not estimate the fuel-to-oil ratio
Superseded Part Numbers
- 858015Q03
- 858036Q01
- 858036QC1
Related Products
- Mercury High Performance 2-Stroke Oil | 8M0078011
- Mercury Premium TC-W3 2-Stroke Oil – 858021KC1
- Accu-Mix 2-Stroke Oil-to-Gas Measuring Bottle
Parts Desk Insights
This is a full synthetic 2-stroke PWC / sport-boat oil — not Mercury's conventional TC-W3 outboard oil and not DFI/OptiMax oil. The most common ordering mistake is selecting the wrong 2-stroke oil type for the engine's lubrication system. Verify the engine's required oil specification (JASO FD / ISO EGD) before purchasing. If the engine calls for TC-W3 or a DFI-specific lubricant, a different product is required.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.