ConocoPhillips 76 API SF/CD Engine Oil For Older Vehicles, SAE40. 76 Custom Motor Oil is a high-quality engine oil designed primarily for use in older (pre-1989) passenger cars and light trucks in light-duty service. It also is recommended for use in older (pre-1995) diesel equipment where an API CD quality oil is specified. It should not be used in engines where an oil meeting new car warranty requirements is required. Custom Motor Oil is formulated to provide good wear protection, to minimize the formation of sludge and varnish, and to protect against rust, bearing corrosion and foaming. Automotive gasoline engines built prior to 1989 and operating under light-duty conditions & Older diesel equipment where API CD quality oil is specified. 12Packs. SAE40