CAM2 SuperHD 40 Motor Oil is an API licensed, premium quality, heavy-duty engine oil. CAM2 SuperHD 40 Motor Oil is formulated from premium quality base stocks and advanced additive technology, providing the highest levels of equipment protection available. CAM2 SuperHD Motor Oils meet the Caterpillar ECF-1 specification. CAM2 SuperHD Motor Oils are available in 5 viscosity grades to comply with virtually all equipment applications. Equipment manufacturersâ€™ recommendations and conventional guides to lubricant selection should be followed to determine the best CAM2 SuperHD Motor Oil grade for a specific application.