GAS OIL COMPOSITION PRODUCTION METHOD

The present invention provides a gas oil composition that can achieve environment load reduction, low temperature properties and low fuel consumption all together and is suitably used in a winter season. The gas oil composition comprises an Ft synthetic base oil in an amount of 60 percent by mass or more on the basis of the total mass of the composition and has a sulfur content of 5 ppm by mass or less, an aromatic content of 10 percent by volume or less, an oxygen content of 100 ppm or less, an end point of 360° C. or lower, an insoluble content after an oxidation stability test of 0.5 mg/100 mL or less, an HFRR wear scar diameter (WS1.4) of 400 μm or smaller and a specific relation in normal paraffin contents and the total content thereof.