API changes oil classification
Contributors: Chilton Company; American Petroleum Institute
Series: Technical note / Bureau of Land Management, U.S. Department of the Interior -- 42; BLM technical note -- 42; Technical note (United States. Bureau of Land Management) -- 42.; BLM technical note -- 42.
Publisher: U.S. Department of the Interior, Bureau of Land Management, Portland Service Center
Published: 1970
Place of publication: Portland, Or
Language: eng
Subjects: United States; Automobiles; Maintenance and repair; United States. Bureau of Land Management; Vocational guidance; Classification; Trucks; Lubricating oils; Records and correspondence
Other titles: American Petroleum Institute changes oil classification; Commercial car journal.
Description: Informs automobile operators that API changed its classification system for motor oils. The new system is designed to promote improved communications between engine oil users, suppliers, and manufacturers. Breakdown of new and old classifications is included.
Notes: Caption title.

"Filing code: 1525 (P-401)."

"Date issued: October 1970."

"TN-42"--Assumed.

"Reprinted by Bureau of Land Management, Portland Service Center, from Commercial car journal, September 1970, copyright 1970, Chilton Company"--Page 2.

Includes bibliographical references (page 2).