A year ago, for the first time, American Petroleum Institute (API) started licensing two different heavy duty diesel engine oils. CK-4 oil is the new backward-compatible standard, designed to replace CJ-4. A new FA-4...
American Petroleum Institute (API) News Archives
Tank Transport Trader presents the latest news from the American Petroleum Institute, a national trade association that represents America’s oil and natural gas industry, to promote safety and influence public policy for the industry – and more news for the transportation & liquid dry-bulk industry –