ASTM D3524 - 14

    Standard Test Method for Diesel Fuel Diluent in Used Diesel Engine Oils by Gas Chromatography

    Active Standard ASTM D3524 | Developed by Subcommittee: D02.B0

    Book of Standards Volume: 05.04


      Format Pages Price  
    PDF 6 $42.00   ADD TO CART
    Hardcopy (shipping and handling) 6 $42.00   ADD TO CART


    Significance and Use

    5.1 Some fuel dilution of the engine oil may take place during normal operation. However, excessive fuel dilution is of concern in terms of possible performance problems. This method provides a means to determine the magnitude of the fuel dilution, providing the user with the ability to predict performance and to take appropriate action.

    1. Scope

    1.1 This test method covers the use of gas chromatography to determine the amount of diesel fuel in used engine lubricating oil. This test is limited to SAE 30 oil. The diesel fuel diluent is analyzed at concentrations up to 12 mass %.

    Note 1This test method may be applicable to higher viscosity grade oils. However, such oils were not included in the program used to develop the precision statement.

    1.2 This test method is limited to gas chromatographs equipped with flame ionization detectors and temperature programmable ovens.

    Note 2The use of other detectors and instrumentation has been reported. However, the precision statement applies only when the instrumentation specified is employed.

    1.3 There is some overlap of the boiling ranges of diesel fuel and SAE 30 engine oils. Moreover, the boiling range of SAE 30 oils from various sources can vary appreciably. As a result, the calibration can be altered by as much as 2 %, in terms of fuel dilution. When testing unknown or mixed brands of used engine oil, it should be realized that the precision of the method may be poorer than the precision obtained when calibrating with a new oil representative of the used oil being tested.

    1.4 The values stated in SI units are to be regarded as the standard. The values stated in inch-pound units are for information only.

    1.5 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 requirements prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D4626 Practice for Calculation of Gas Chromatographic Response Factors

    E260 Practice for Packed Column Gas Chromatography

    E355 Practice for Gas Chromatography Terms and Relationships

    E594 Practice for Testing Flame Ionization Detectors Used in Gas or Supercritical Fluid Chromatography

    E1510 Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs


    ICS Code

    ICS Number Code 75.100 (Lubricants, industrial oils and related products)

    UNSPSC Code

    UNSPSC Code 15121501(Engine oil)


    DOI: 10.1520/D3524

    ASTM International is a member of CrossRef.

    ASTM D3524

    Citing ASTM Standards
    Back to Top