Cold Flow Properties Of Automotive Diesel Fuels And Diesel Fuel Systems

A cold flow index of automotive diesel fuels in Japan has been investigated, from the view point of the fuel system configuration of diesel vehicles, by a task force study organized by the Japan Petroleum Institute. The results of the study are as follows;

1. 1.
   The Cold Filter Plugging Point (IP 309, JIS K 2288) was found to be an excellent index of cold flow properties of automotive diesel fuels for the operability of Japanese diesel vehicles.
2. 2.
   CFPP values for cold operability limits for the fuels at minimum ambient temperatures were established in the range from −5° to −30°C.
3. 3.
   A rig tester simulating the cold operation of the most sensitive vehicle at ambient temperature was very effective in evaluating the cold flow properties of automotive diesel fuels.