Description
Quicksilver 10W-40 4-Stroke Marine Engine Oil, 1 Quart (8M0148476)
Protect your four-stroke marine engine with Quicksilver’s mineral-base 10W-40 formulated specifically for the water. A marine-specific additive package delivers strong corrosion resistance, stable viscosity at high rpm and temperature, and cleaner operation to help prevent varnish and sludge—keeping performance consistent in real-world boating.
Applications
- For all 4-stroke marine engines: outboard, personal watercraft (PWC), sterndrive, and inboard
- SAE 10W-40 viscosity where specified by the engine manufacturer
- Meets/Exceeds marine warranty requirements; FC-W & FC-W Catalyst Compatible
Shipping & Returns
Fast shipping from Wisconsin with reliable carriers. Have compatibility questions? We’re happy to help. Returns are easy—see our Return Policy.
Key Facts
- Brand: Quicksilver
- Part #: 8M0148476
- Viscosity: SAE 10W-40
- Type: Mineral 4-Stroke Marine Engine Oil
- Size: 1-Quart (32 oz) Bottle
- UPC: 745061245778
- Country of Origin: US
- Category: Oils & Lubricants > 4-Stroke Oils
- Benefits: Corrosion protection, wear protection, high-rpm/heat stability, helps resist varnish & sludge
- Catalyst Safe: FC-W catalyst compatible
What’s Included
- 1 × Quicksilver 10W-40 4-Stroke Marine Engine Oil, 1-Quart (8M0148476)
Service Notes
- Follow your owner’s/service manual for oil grade, capacity, and change intervals
- Warm engine before draining; refill, run, cool, and re-check level—do not overfill
- Use approved marine oils; store with fuel stabilizer where appropriate
- California Prop 65: Cancer and Reproductive Harm
- Recycle used oil and containers responsibly


