SAE J549-2015
Preignition Rating of Spark Plugs

Standard No.

SAE J549-2015

Release Date

2015

Published By

SAE - SAE International

Status

Be replaced 2020-01

Replace By

SAE J549-2020

Latest

SAE J549-2020

Scope

This SAE Recommended Practice describes the equipment and procedures used in obtaining preignition ratings of spark plugs. The spark plug preignition ratings obtained with the equipment and procedure specified herein are useful for comparative purposes and are not to be considered as absolute values since different numerical values may be obtained in different laboratories.

SAE J549-2015 Referenced Document

• SAE J1899-2011 Lubricating Oil, Aircraft Piston Engine (Ashless Dispersant)
• SAE J1966-2011 Lubricating Oils, Aircraft Piston Engine (Nondispersant Mineral Oil)
• SAE J2203-2014 SAE 17.6 Cubic Inch Spark Plug Rating Engine

SAE J549-2015 history

• 2020 SAE J549-2020 Preignition Rating of Spark Plugs
• 2015 SAE J549-2015 Preignition Rating of Spark Plugs
• 2013 SAE J549-2013 Preignition Rating of Spark Plugs
• 1999 SAE J549-1999 Preignition Rating of Spark Plugs
• 1995 SAE J549-1995 Preignition Rating of Spark Plugs (March 1995)
• 1990 SAE J549-1990 PREIGNITION RATING OF SPARK PLUGS
• 1982 SAE J549-1982 Preignition Rating of Spark Plugs
• 1970 SAE J549A-1970 PREIGNITION RATING OF SPARK PLUGS