Fuel designed for operation in the warm season, when the air temperature is consistently above zero. Its key feature is the composition that ensures stable engine operation in hot weather, but becomes a problem when it gets cold.
Winter diesel fuel is a special type of fuel created specifically for use at low temperatures. Its key purpose is to maintain its fluidity and ability to flow through the fuel system even in cold weather, when regular (summer) fuel begins to thicken and can clog filters.
