25W-40 SYN S/D ENGINE OIL - MERC

Sierra Mercury Mercury 25W-40 FC-W Sterndrive Synthetic Engine Oil is a 4-cycle oil with blended premium grade synthetic and mineral-based stock combined with additives to reduce engine stress. It removes thermal breakdown under high RPM's, extreme temperatures and loads. Meets API-SL requirements and is NMMA FC-W Certified/API-SL.