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Add to CartSierra 10W-40 FC-W 4 Stroke engine oil is a semi synthetic blend that has been formulated to provide superior protection for outboard engines. The proprietary blend of conventional with synthetic lubricants allow this oil to keep your engine running smoothly under high loads and running stresses.
*Do NOT mix with gas. Not for use in 2 cycle pre-mix, injected engines, inboards/sterndrives equipped with catalytic converters
Features:
Interchange
18-9551-2 - Quart
18-9551-3 - Gallon
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
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