A zeolite-containing diesel-fuel dearomatization catalyst was prepared using synthesized tungsten-doped zirconia WO42-\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$ {\mathrm{WO}}_4<^>{2-} $$\end{document}/ZrO2 and an Ni-Mo complex. The catalyst was tested for diesel fuel dearomatization at 4.5 MPa, feedstock input volume flow rate 1.5 h(-1), H-2/feedstock volume ratio 1000 nm(3)/m(3), and temperature range 270-330 degrees C. The highest conversion (78.8%) of polycyclic aromatic hydrocarbons and greatest cetane number were attained at 290 degrees C. Also, the cloud and pour points of the diesel fuel decreased by 23-25 degrees C because of cracking at 310-330 degrees C and extensive isomerization at 290 degrees C. This was confirmed by the yields of target diesel fraction of 69.8-72.9 and 89.2 wt. %, respectively.