ENGINE TESTING LUBRICATING OILS. PART 1 GENERAL TESTS

Engines are used to test oils in test beds, chassis dynamometers or in field tests in motor vehicles. Oil formulation is normally carried out in test beds where any required condition can be reproduced. The tests can be set up using special single-cylinder engines or commercially available units. Chassis dynamometers accept a wide range of cars permitting them to be run in a stationary position under any required conditions. Although dynamometers are designed to reproduce engine loadings found in use, they do not replace road tests because the test programme is artificial. Road testing is essential as the ultimate proof of oil performance. The tests, normally carried out on public roads, use a commercial fleet with a number of similar vehicles equipped with engines of the same production series over a total distance of between 9600 and 40000 km. Before tests, engines are stripped, cleaned and measured so as to assess wear during the tests. A wide range of possible lubrication problems in engines are discussed, varying from piston crown deposits to sludge deposits. A rating system has been devised to compare component performance in the new oil and a standard oil using "before and after" dimensions of the dismantled engine. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03091430
• Corporate Authors:

  INSTITUTE OF AUTOMOTIVE ENGINEER ASSESSORS

  STOWE HOUSE, NETHERSTOWE
  LICHFIELD, STAFFORDSHIRE  United Kingdom  WS13 6TJ
• Authors:
  • Secker, FJS
• Publication Date: 1983

Media Info

• Features: Figures;
• Pagination: p. 2
• Serial:
  • Journal of the Inst of Automotive Eng Assessors
  • Volume: 28
  • Publisher: Jour of the Inst of Automotive Eng Assessors, Inc
  • ISSN: 0309-1430

Subject/Index Terms

• TRT Terms: Dynamometers; Economic efficiency; Field tests; Highways; Inspection; Lubricating oils; Lubrication; Motor vehicles; Motors; Oils; Test procedures; Vehicle power plants; Vehicles; Wear
• Uncontrolled Terms: Efficiency
• Old TRIS Terms: Automobile engines
• ITRD Terms: 5911: Efficiency; 2755: Highway; 3839: Lubrication; 1334: Motor; 4961: Oil; 6288: Test method; 1255: Vehicle; 1575: Vehicle inspection; 5293: Wear
• Subject Areas: Economics; Geotechnology; Highways; Materials; Vehicles and Equipment; I91: Vehicle Design and Safety; I96: Vehicle Operating Costs;

Filing Info

• Accession Number: 00382156
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM