Enhance the performance of your diesel engine with Stanadyne Lubricity Formula #38560 Diesel Fuel Additive. 16oz. bottle is perfect for those who want to keep their diesel treatment costs low while still maintaining optimal engine performance. Made in the United States, this diesel treatment is specifically designed to improve the lubricity of your engine, ensuring that it runs smoothly and efficiently. With its unique formula, this Stanadyne product is perfect for diesel engines of all sizes and types. Order now and experience the benefits of this high-quality diesel treatment.