In winter, food and essential goods are delivered to remote settlements of the Republic of Sakha (Yakutia) by winter roads. As a rule, such long routes are driven by cars running on a diesel engine. Despite the difficulties in operating diesel vehicles in extremely low temperatures, diesel vehicles are much more powerful and more economical than gasoline ones. Problems with the start and operation of a diesel engine are associated with the low-temperature properties of diesel fuel. In the article, we considered the possibility of developing portable equipment for introducing and mixing a pour point depressant with fuel in the real conditions of the Far North. We have described a block diagram and a functional diagram of such equipment. In the plant being designed, we have included the possibility of heating the fuel and additives, the filtration system, the control panel and the safety of the system.