The fuel consumption of passenger cars can be reduced in many ways. Decreasing the drag coefficient cuts down on the consumption with 3-10% calculated on the basis of the total consumption of passenger cars. Decreasing the cubic capaity of the engine with 200 ccm reduces the consumption with 12-24%. Introduction of small city cars (engine capacity of less than 660 ccm) gives a reduction of 8-13%, changing over to diesel engines gives a reduction of 20-30% and to small two-stroke engines a reduction of 30%. Changing over to electric cars in cities and in the short-distance traffic of cities would reduce the consumption of liquid fuel in traffic with passenger cars with 30-40%, but it would require using of the power of six power plants (total 3000 MW) for night-time charging. The consumption of liquid fuel by buses varies considerably according to the bus and the driving conditions. Developing of the qualities of a car may produce a saving of 5-15% in its energy consumption. Additionally, optimized use of a car can produce a saving of 5-10%. In future, the boundary between delivery vans and lorries may blur when new types of distribution systems will be introduced. The possibilities of saving fuel will be considerably good, up to 30-49% for delivery vans and light lorries, and 20-30% for heavy lorries. The development of traffic is a result of the traffic policy of the public administration and the behavior of private people. Background factors are various measures of car manufacturers and marketing organizations. The prevailing development will lead to a steady growth of consumption of liquid fuel in the traffic.

  • Availability:
  • Corporate Authors:

    Ministry of Trade and Industry, Finland

    Energy Department
    Helsinki,   Finland 
  • Authors:
    • HIMANEN, V
  • Publication Date: 1991


  • Finnish

Media Info

  • Pagination: 83 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00618385
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • ISBN: 951-47-3931-0
  • Report/Paper Numbers: KTM/E-D-191
  • Files: TRIS
  • Created Date: Jan 31 1992 12:00AM