JASO M331-1991
Low and medium temperature detergency test procedure for evaluating automobile gasoline engine oils

Standard No.

JASO M331-1991

Release Date

1991

Published By

JSAE - Society of Automotive Engineers of Japan@ Inc.

Status

Be replaced 2015-11

Replace By

JASO M331-2011

Latest

JASO M331-2011

JASO M331-1991 history

• 2011 JASO M331-2011
• 1991 JASO M331-1991 Low and medium temperature detergency test procedure for evaluating automobile gasoline engine oils