ASTM-D4857 › Historical Revision Information
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

ASTM-D4857 - 2008 EDITION - SUPERSEDED
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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of Lubricants to Minimize Ring Sticking and Piston Deposits in Two-Stroke-Cycle Gasoline Engines Other Than Outboards (Withdrawn 2021)
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Scope

1.1 This test method evaluates the performance of lubricants intended for use in two-stroke-cycle spark-ignition gasoline engines that are particularly prone to ring sticking. Piston varnish and spark plug fouling are also evaluated.

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

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Significance and Use

This test method is primarily intended for the evaluation of lubricants for use in two-stroke-cycle engines of high specific output.

Note 1—If the test method is being used to satisfy a portion of Specification D 4859, refer to the specification for the pass-fail criteria.

Keywords

air-cooled; engine deposits; lubricant; two-cycle gasoline engine; Calibration--petroleum analysis instrumentation; Cold sticking (of piston rings); Combustion chamber; Exhaust port blockage; Gasoline; Heating tests--petroleum products; Hot sticking (of piston rings); Instrumental measurement--petroleum products; Lubricants (fluid); Lubricating oils; Performance--petroleum products/applications; Piston rings; Ring sticking; Spark plugs; Temperature tests--petroleum products; Thermocouples; Two-stroke-cycle engines; Yamaha RD-350B test engine; ICS Number Code 75.100 (Lubricants, industrial oils and related products)

To find similar documents by ASTM Volume:

05.02 (Petroleum Products and Lubricants (II): D3711 - D6122)

05.05 (Combustion Characteristics; Manufactured Carbon and Graphite Products; Catalysts)

To find similar documents by classification:

75.100 (Lubricants, industrial oils and related products Including mineral oils, fluids for metal working and for temporary protection against corrosion Lubrication systems, see 21.260 Insulating oils, see 29.035.40)

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Document Number

ASTM-D4857-08

Revision Level

2008 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Dec. 1, 2008

Document Type

Test Method

Page Count

10 pages

Committee Number

D02.B0.06