FUEL SAVINGS WITH MULTIGRADE ENGINE OILS IN MEDIUM-SPEED DIESEL ENGINES

Operating costs for railroads and marine operations can be reduced by decreasing the amount of diesel fuel required to transport a ton-mile of freight. The paper describes the fuel economy testing of multigrade railway engine oils in stationary two-and twelve-cylinder, medium-speed EMD diesel engines. Over the duty cycle of an average freight locomotive, multigraded oil reduced fuel consumption by 0.9 percent relative to an SAE 40 single-grade engine oil. The bulk of the fuel savings which occurred at lower operating temperatures can be attributed to the lower viscosity of the multigrade oils. At higher throttle settings, fuel savings for multigraded oils may be related to the temporary shear stability of the viscosity index improver.

  • Corporate Authors:

    American Society of Lubricating Engineers

    838 Busse Highway
    Park Ridge, IL  United States  60068
  • Authors:
    • Stauffer, R D
    • Zahlka, T L
    • Kornmann, R L
  • Publication Date: 1984-12

Media Info

  • Pagination: p. 744-751
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00396392
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Jul 31 1985 12:00AM