Delo 400 SD SAE 15W-30 Motor Oil, 1 gallon, 3 Pack ISOSYN Technology Performance is equal to or better than full synthetic and synthetic blend HDMOs in recognized industry bench tests Excellent oxidation and deposit protection APICJ-4 for newer low emissions engines Designed for severe duty applications such as stop and go, stop and start Wide range of OEM approvals, use where SAE 10W-30 is recommended