Sierra 10W-30 4-Stroke Synthetic Marine Oil

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Sierra 10W-30 4-Stroke Synthetic Marine Oil

Sierra 10W-30 Synthetic Blend Engine Oil is formulated specifically for 4-stroke outboard and sterndrive engine technology. The special blend of synthetic base oil and a balanced additive system exceeds FC-W requirements and provides excellent protection at high temperatures. This superior protection works under heavy engine loads and offers faster lubrication at start up.

Note: Do NOT mix with gas - NOT for use in 2 cycle premix or injection engines.


  • Recommended for use in both outboard and sterndrive applications
  • Offers faster lubrication at start up in low temperatures
  • Excellent protection at high temperatures
  • Greater resistance to oxidation for lower oil consumption
  • NMMA FC-W Certified/API-SL
  • Sold in quarts and gallon sizes

California Residents: warning sign WARNING Cancer and Reproductive Harm -

Other Details

Google Product Type:
Oil Use:
Engine Oil
Oil Type:
Product MPN:
18-9690-2, 18-9690-3
Product UPC:
808282184353, 808282184360

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