Description
Mercury 10W-30 4-Stroke Synthetic Blend Marine Engine Oil, 1 Gallon (8M0142151)
Trust the outboard experts: Mercury’s SAE 10W-30 Synthetic Blend 4-Stroke Marine Oil is engineered to protect mid- and high-horsepower marine engines under real-world conditions. With industry-leading resistance to shearing and thermal breakdown, this premium formula guards against wear and helps extend engine life—while powerful corrosion inhibitors defend your outboard on and off the water.
Applications
- Recommended for 4-stroke outboards up to 150 hp
- Compatible with Mercury 3.4L V6 and 4.6L V8 outboards
- For other 4-stroke marine engines where SAE 10W-30 is specified
Shipping & Returns
Ships quickly from Wisconsin with reliable carriers. Have fitment questions? We’re here to help. Returns are easy—see our Return Policy.
Key Facts
- Brand: Mercury Precision
- Part #: 8M0142151
- Viscosity: SAE 10W-30
- Type: Synthetic Blend 4-Stroke Marine Oil
- Size: 1-Gallon Bottle
- UPC: 745061055100
- Category: Oils & Lubricants > 4-Stroke Oils
- Benefits: Corrosion protection, wear protection, strong viscosity retention
- OEM Quality: Produced to Mercury Marine OEM specifications
What’s Included
- 1 × Mercury SAE 10W-30 Synthetic Blend 4-Stroke Marine Oil, 1-Gallon (8M0142151)
Service Notes
- Use where SAE 10W-30 is recommended by the engine manufacturer; always follow your service manual
- Check level after filling; do not overfill—run, cool, and re-check
- Change intervals per manufacturer guidance and duty cycle; recycle used oil responsibly
- For Mercury V6 3.4L and V8 4.6L outboards, confirm oil spec and capacity by serial number





