ASTM D4859-13 - 15.6.2013
 
1. Scope

1.1 This specification covers lubricants intended for use in two-stroke-cycle spark-ignition gasoline engines, typically other than outboard motors, that are particularly prone to ring sticking, but which are also liable to suffer damage arising from deposit induced preignition, piston scuff, spark plug fouling and piston varnish.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

 
2. Referenced Documents

CEC L-19-T-77

The Evaluation of the Lubricity of Two-Stroke Engine Oils Order from the Coordinating European Council, 61 New Cavendish Street, London, W1M 8AR, England.

D4858-13

Standard Test Method for Determination of the Tendency of Lubricants to Promote Preignition in Two-Stroke-Cycle Gasoline Engines (Withdrawn 2022)

D4863-13

Standard Test Method for Determination of Lubricity of Two-Stroke-Cycle Gasoline Engine Lubricants (Withdrawn 2022)

D2896-26

Standard Test Method for Base Number of Petroleum Products by Potentiometric Perchloric Acid Titration

D4857-12

Standard Test Method for Determination of the Ability of Lubricants to Minimize Ring Sticking and Piston Deposits in Two-Stroke-Cycle Gasoline Engines Other Than Outboards (Withdrawn 2021)

D874-23

Standard Test Method for Sulfated Ash from Lubricating Oils and Additives

D664-24

Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration

D445-26

Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

D2270-24

Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 ?C and 100 ?C