SAE 25W-40 | 55 Gallon Drum Formulated to provide excellent lubrication and corrosion protection. Stern drive and inboard engines operate under high load and running stresses. Developed for the marine environment and will outperform standard 4-cycle automotive engine oils. Meets or exceeds quality performance API SJ, CF-4, CH-4. NMMA FC-W Certified. Recommended for use in Mercruiser and OMC.