The Lucas 10866 Anti-Gel Cold Weather Diesel Fuel Treatment Additive is a high-quality product designed to improve the performance of diesel engines in cold weather conditions. This 1/2 gallon pack of Lucas fuel treatment is specifically formulated to reduce gel formation and ensure smooth operation, making it ideal for use in colder climates. Made in the United States, this diesel treatment is a reliable choice for drivers looking to keep their vehicles running smoothly in icy weather.