
Marine Engine Oil
Ensure peak performance and protection for your outboard motor with our curated selection of marine engine oils and lubricants. Whether you're using a 2-stroke or 4-stroke engine, we offer top-rated brands like Yamaha, Mercury, and Quicksilver—all trusted by boaters worldwide.
Why Choose Our Marine Oil Products?
- ✅ OEM-approved formulations for top brands
- ✅ Protection against rust, corrosion, and wear
- ✅ Available in multiple sizes for your needs
- ✅ Fast shipping and easy returns
Need Help Choosing the Right Oil?
Check out our Marine Oil Buying Guide for tips on selecting the best lubricant for your boat's engine type, climate, and maintenance schedule.
Marine engine oil is a specialized lubricant designed for use in marine engines, such as outboard motors, inboard engines, and sterndrive systems. This high-quality oil is formulated to withstand the harsh operating conditions of marine environments, including high temperatures, heavy loads, and saltwater exposure. Marine engine oil helps protect engine components from wear and corrosion, ensuring optimal performance and longevity. It provides superior lubrication to critical engine parts, such as pistons, cylinders, and bearings, while also helping to maintain proper engine cleanliness. Choose the right Marine Engine Oil for your vessel to ensure smooth operation and maximum durability.
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Semi-Synthetic Oil Mercury 25W40 5qt - 18-9440-4
SIERRA MARINE
MSRP: $83.69$70.494-cycle oil blended with premium grade synthetic and mineral based stockSuperior designed additives formulated for the stress endured by sterndrive and inboard enginesSuperior corrosion protectionAdvanced lubrication for reduction of wear to internal...MSRP: $83.69$70.49 -
Yamaha Oil Change Kit - 18-9391
SIERRA MARINE
$67.59For use with yamaha outboard f75/ f80/ f90/ f100 and f115 models; with 4-stroke oil/ oil pan drain gasket/ oil filter/ oil change funnelYamaha OutboardLUB-MRNMD-KT-10LUB-MRNMD-KT-11$67.59