Proprietary specifications – on top of industrywide standards – are becoming a way of life for heavy-duty engine oil marketers. While vowing support for the American Petroleum Institutes engine oil classification system, heavy-duty engine builders continue to pile their own tough standards on top of the accepted industry categories for heavy-duty engine oils.
Latest sign of this trend was Caterpillar Inc.s announcement last month that it would issue two new proprietary heavy-duty diesel engine oil specifications, ECF-2 and ECF-3. Also, for the first time, it will have a registration program for products meeting the new specifications. (See Lube Reports Dec. 21 issue.)