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.
Rationale: 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.