This SAE Standard establishes the requirements for lubricating oils containing ashless dispersant additives to be used in four-stroke cycle, reciprocating piston aircraft engines. This document covers the same lubricating oil requirements as the former military specification MIL-L-22851. Users should consult their airframe or engine manufacturers manuals for the latest listing of acceptable lubricants.
This Standard was revised based on the recommendations made at the 22 April 2010 SAE E-38 Aviation Piston Engine Fuels and Lubricants Committee meeting. The revision is part of the standard SAE five-year review process and it includes both technical and editorial changes. The name of the preparing SAE committee has changed to E-38 and is now under the SAE Aerospace Council.