API CK/FA-4

Savant Labs have the ability and capacity to perform the testing required for the fresh oil viscosity and bench test requirements, including the elastomer compatibility testing necessary to meet the standards below. 

API CK-4 and FA-4, the API heavy-duty diesel engine oil specifications for heavy-duty trucks and equipment, provide for reduced carbon dioxide and greenhouse gas emissions and engine durability while improving oxidation resistance, shear stability and aeration control.