Octane Rating

Motorists can be confident that the gasoline they buy meets its advertised octane number rating and is safe for their vehicle’s engine – because of technology for determining a fuel’s octane number pioneered by GE’s Waukesha* gas engines. The Waukesha CFR F1/F2 engine is the most widely used fuel rating instrument for octane number determination and the only one that conforms to both North American and European gasoline fuel specifications.

How it Works

Gasoline is rated for engine fuel purposes according to its anti-knock value; this value is expressed in terms of an octane number. The most common type of octane rating worldwide is the Research Octane Number (RON), which is determined by running fuel in a single-cylinder test engine using the ASTM® D 2699 Standard Test Method. 

The Waukesha CFR F1/F2 octane rating unit allows the operator to adjust a variety of engine parameters. By controlling the test parameters of ignition timing, compression ratio and fuel choice, the operator is able to determine the octane rating of the fuel through a process of interpolation.

Features and Benefits

  • Easy setup for either ASTM® D 2699 Standard Test Method (RON) or ASTM D2700 (MON) Standard Test Method for Motor Octane Number.
  • User-friendly operation for consistent, reliable results:  Touch screen panel interface. Built-in prompts guide operator through test procedures for all ASTM test methods. 
  • On-screen rating displays with bold graphics and easy-to-read charts.
  • Automatic data recording and graphic report generation. Preserves data integrity and allows direct data access, data sharing and archiving.
  • Fully integrated digital controls for safe operation. Robust protection. Integrated shutdown system, visual status with alarms, automatic event log.
  • Electronic maintenance log. Easily record oil changes, carbon blasting, cylinder installation and routine maintenance.
  • Available Octane Analyzer Option: Fully automated for greater productivity, more consistent results from operators, and faster operator training.

* Trademark of the General Electric Company

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