A study has been made of the effects of different vehicle preconditioning on particulate emissions from three light-duty diesel automobiles. The results indicate that prior extreme operation of a vehicle can affect the level of particulate emitted during measurements by the Federal Test Procedure. However, one LA-4 driving cycle appears to provide adequate preconditioning for most cases. The duration and magnitude of the preconditioning effect varies among vehicles.

  • Corporate Authors:

    Environmental Protection Agency

    Standards Development & Support Branch, 2565 Plymouth Road
    Ann Arbor, MI  United States  48105
  • Authors:
    • Danielson, E
  • Publication Date: 1979-2

Media Info

  • Pagination: 12 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00304185
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: SDSB-79/05 Tech Rpt.
  • Files: TRIS
  • Created Date: Dec 19 1980 12:00AM