Opti-Lube

Opti-Lube is a specialty lubricant and fuel additive company based in Orem, Utah. The brand focuses primarily on diesel performance chemistry, with a product line spanning fuel additives (cetane improvers, injector cleaners, anti-gel treatments), oil fortifiers, and industrial greases. The XPD All-Season Diesel Fuel Additive is the brand's flagship consumer product, designed as an all-in-one treatment for ultra-low sulfur diesel covering lubricity, cetane improvement, injector cleaning, and cold-weather anti-gel protection in a single concentrated formula.

Opti-Lube is known in the diesel truck community for its lubricity focus, with the XL Xtreme Lubricity variant targeting owners specifically concerned about ULSD lubricity deficits in high-pressure common-rail injection systems. The brand's products are formulated in the United States and are compatible with all vehicle emissions systems, including DEF-equipped trucks.