When cold, diesel fuel wax crystals can accumulate on fuel filters and restrict fuel flow and promote fuel starvation.  That will result in a loss of power, engine stalling, and the inability to restart. A fuel treated with Gumout All-In-One Diesel, which contains a good Cold Flow Improver additive, will have the capability to fight against these cold weather issues by inhibiting the growth of fuel wax crystals, improving fuel cold flow in the fuel delivery system, and fixing these cold weather issues.