SAE 30 Monograde YACCO Oil is a non-detergent monograde mineral oil for vintage vehicles (engine, Cotal gearbox, etc.). SAE 30 Monograde YACCO is a non-detergent oil that provides good protection against rust and corrosion. SAE 30 YACCO Monograde oil is also suitable for applications where an ISO VG 100 mineral is recommended (compressors, pumps, etc.). SPECIFICATIONS API SB SAE 30 ISO VG 100