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Scope

1.1 This test method covers an engine test procedure for evaluating diesel engine oils for performance characteristics, including viscosity increase and soot concentrations (loading). This test method is commonly referred to as the Mack T-8.

1.2 This test method also provides the procedure for running an extended length T-8 test, which is commonly referred to as the T-8E and an abbreviated length test, which is commonly referred to as T-8A. The procedures for the T-8E and the T-8A are identical to the T-8 with the exception of the items specifically listed in Annex A8 and Annex A9 respectively. Additionally, the procedure modifications listed in Annex A8 and Annex A9 refer to the corresponding section of the T-8 procedure.

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

1.3.1 Exceptions—Where there is no direct SI equivalent such as the units for screw threads, National Pipe Threads/diameters, tubing size, sole source equipment suppliers, and oil consumption in grams per kilowatthour.

Significance and Use

This test method was developed to evaluate the viscometric performance of engine oils in turbocharged and intercooled four-cycle diesel engines. Results are obtained from used oil analysis.

The test method is used for engine oil specification acceptance when all details of the procedure are followed.

Keywords

diesel engine oil; lubricants; soot; T-8 diesel engine; viscosity; Viscosity--petroleum products; Data dictionary; Diesel engine fuel oils; Lubricants; Operational data report forms; Performance--petroleum products/applications; Soot; Test engines; Viscometric performance; 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)

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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