TECHNICAL SURVEY OF CNG VEHICLES

This report describes the findings of a non-random selection survey undertaken to assess the performance standard and level of public satisfaction with CNG powered vehicles. A total of 65 vehicles from the Auckland area were evaluated covering most of the popular models and CNG conversion systems. A significant proportion was found to have CNG equipment deficiencies which caused a power difference between petrol and CNG of more than 20%. The majority of these vehicles were capable of being rectified relatively easily. Approximately 75% of the people surveyed were satisfied with the power output of their vehicle. Over half of the vehicles belonging to dissatisfied owners exhibited power differences in excess of 20%. The major complaint, raised by over 25% of the people surveyed, was difficult cold starting on CNG.

• Corporate Authors:

  University of Auckland

  Department of Mechanical Engineering
  Auckland,   New Zealand 
• Authors:
  • Jones, K
  • Raine, R R
  • Stephenson, J
• Publication Date: 1985-2

Media Info

• Pagination: 25 p.

Subject/Index Terms

• TRT Terms: Compressed natural gas; Data collection; Fuel systems; Gasoline; Surveys; Vehicles
• Subject Areas: Geotechnology; Highways; Materials; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00457483
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NZERDC-113
• Files: TRIS
• Created Date: Aug 31 1986 12:00AM