The Penray Companies, Inc. has been the standard of excellence in product quality and service for professionals for more than five decades.We set the pace in cooling system & fuel treatments and shop chemicals that maximize performance and help extend vehicle life. Penray serves the heavy-duty and automotive chemical industries. Two main plants in Elk Grove Village and Wheeling IL manufacture both liquids and aerosol products. Penray is comprised of four separate business units: heavy-duty, automotive, export, and custom manufacturing.
