Penray
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About Penray Performance Chemicals
Since its founding in 1951 in Wheeling, Illinois, Penray has grown from a modest, privately held Midwestern company into one of the most trusted names in aftermarket chemical solutions. From its humble beginnings, Penray has expanded to operate two manufacturing facilities in Illinois, where its products are developed, blended, tested, and packaged entirely in the U.S. That commitment to domestic manufacturing ensures consistent quality and tight environmental standards across the entire product line.
For 70 years, Penray has been a leading aftermarket chemical solutions provider, helping customers solve complex problems with innovative chemistry focused on automotive, heavy-duty, marine, and industrial applications. Whether you're a professional fleet technician, an independent repair shop, or a serious DIY enthusiast, Penray brings laboratory-grade expertise directly to your garage or service bay.
Penray's products are designed by in-house certified chemists with input from professional technicians and rigorously tested to ensure they meet international quality, safety, and environmental standards. This science-first approach means every product in the lineup is engineered to perform, not just to satisfy a label claim.
A Broad Range Built for Real-World Demands
The company offers a wide range of products including lubricants, functional fluids, specialty cleaners, and maintenance solutions for various systems. One of Penray's most recognized product segments is its fuel additives lineup. The Penray Fuel Doctor Program offers complete, expert fuel testing and analysis followed up by customized treatment plans. From diesel anti-gel treatments to complete fuel system cleaners, Penray's fuel chemistry addresses the full lifecycle of modern fuel system maintenance.
Beyond the fuel system, Penray's multi-purpose lubricants are a staple in professional shops and fleet garages. Penray formulates, blends, fills, and packages more than 2,000 products designed to help customers solve complex problems safely and efficiently. Their lubricant lineup spans everything from penetrating sprays to specialty greases engineered for demanding industrial and automotive environments.
For drive-train and mechanical applications, Penray's chain lubricants stand out for their specialized formulation. Penray's Chain Lube is a durable lightweight grease fortified with Moly Sulfide and an anti-wear additive, ideal for high-velocity applications — it dries after entering chain links or cable strands, quiets noise, and prevents oxidation for longer service life.
Trusted by Professionals Worldwide
Penray Companies, Inc. has been a respected supplier of chemical products for automotive, heavy-duty, industrial, and marine markets for more than a half-century. This dedication to quality has made Penray products a popular choice among professionals from more than 20 countries around the globe. With a legacy built on chemistry, craftsmanship, and a deep understanding of what technicians need in the field, Penray continues to be the go-to brand when reliable maintenance chemicals matter most.