Determination of Phosphorus Volatility from Lubricant Sequence Tests
Download
1 / 6

Phosphorus Volatility Summary and Recommendations (5-4-06) - PowerPoint PPT Presentation


  • 98 Views
  • Uploaded on

Determination of Phosphorus Volatility from Lubricant Sequence Tests Presentation for ASTM ESCIT August 8, 2006. Phosphorus Volatility Summary and Recommendations (5-4-06). Can be determined using conventional UOA [ neglecting P consumed in anti-wear films and deposits ]

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Phosphorus Volatility Summary and Recommendations (5-4-06) ' - uzuri


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Determination of Phosphorus Volatility from Lubricant Sequence TestsPresentation for ASTM ESCITAugust 8, 2006


Phosphorus volatility summary and recommendations 5 4 06
Phosphorus Volatility Sequence TestsSummary and Recommendations (5-4-06)

  • Can be determined using conventional UOA

    [ neglecting P consumed in anti-wear films and deposits ]

  • Sequence VIB appears to show “reasonable” scale

  • Possibilities for “multitasking” of a GF5 engine test to also yield measures of P volatility should be investigated

    • Analogous to IIIGA and T10A

    • Not as an extra P/F criterion

    • Goal is efficient utilization of data


Bulk oil temperatures
Bulk Oil Temperatures Sequence Tests


Multitasking of a sequence test issues
“Multitasking” of a sequence test Sequence TestsIssues

  • Discrimination

    • Ability to distinguish finished oils with “good” versus “poor” performance

    • Industry reference oils needed

  • Precision

  • Calibration and Limits

    • Relative to 120,000 miles EPA durability schedule?

    • For which engine?

  • Rules for BOI and VGRA

    • Handle as “Technology Approval” rather than qualification of all products and grades


Zddp structure performance
ZDDP Structure-Performance Sequence Tests

  • Factors which reduce P volatility tend to compromise anti-wear performance

  • P retention is a finished oil issue. Any new specification could lead to new formulation approaches

    • Chemistry and dosage of the ZDDP system

    • Detergent system

    • Dispersant system

    • Friction modifier system

    • Antioxidant system


Next steps
Next Steps Sequence Tests

  • Sequence test data are needed for reference oils

    • IIIG/IIIH

    • VIB/VID


ad