A joint industry study was carried out to determine whether or not the use of up to 100 ppm Drag Reducing Additive (DRA) in diesel fuel would result in any short or medium term harmful effects. The study concluded that under normal circumstances, the DRA-treated diesel delivered to end-user equipment should be sheared to an acceptable level that will not cause problems, e.g. poor low temperature operability. Within the medium term, the use of DRA should not result in unusual deposits in the combustion chamber or the fuel injection systems. Based on these findings, the technical committee has approved the use of DRA in Transnorthern Pipeline, Ontario/Quebec, Canada.