Patent ID: 6136049
Filing Date: 2000-10-24
Classification: C10L

Abstract:
A diesel fuel oil composition comprising a base fuel mainly comprising a mineral oil, having a flash point of 40.degree. C. or higher and 90% distillation temperature of 360.degree. C. or lower which satisfies the following relationships (1) and (2), and is incorporated with 0.01 to 0.10 wt % of a flow improver:(a)0<A.ltoreq.4.00 (1)wherein, A is content, based on all normal paraffin compounds present in the base fuel, of normal paraffin compounds having a carbon number of 20 or more (wt %), and(b)0.04.ltoreq.[B/C].ltoreq.0.40 (2)wherein, B is content of normal paraffin compounds having a carbon number of n+5 (wt %), C is content of normal paraffin compounds having a carbon number of n (wt %); [B/C] is average B/C ratio, and (n) is an integer when total content of normal paraffin compounds having a carbon number of (n) or more account for 3.0 wt % of total content of the normal paraffin compounds in the base fuel.