New AMSOIL 15W-40 Commercial-Grade Diesel Oil (SBDF) is competitively priced, synthetic-blend diesel oil for commercial customers who typically won’t consider full-synthetic products. See the March AMSOIL Magazine for more information. BUY COMMERCIAL GRADE HERE 15W-40 Commercial-Grade Diesel Oil PRODUCT OVERVIEW Amsoil’s 15W-40 Commercial-Grade Diesel Oil is an advanced synthetic-blend diesel oil with over 50% synthetic content. \It … Continue reading AMSOIL 15W-40 Commercial-Grade Diesel Oil