With Today's Higher-Mileage, High-Heat Engines and Extended Maintenance Intervals, Cooling Filters Protect the Lifeblood of Your Equipment

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Detroit Diesel and Penray have engaged in numerous, innovative and development projects. Incorporated in 1950, The Penray Companies continue to grow strong after 50 years of service in the heavy-duty and automotive chemical industry. There are two main plants where they manufacture both liquids and aerosol products. They are in Elk Grove Village and Wheeling, Illinois. Penray is comprised of four separate business units: heavy-duty, automotive, export and custom manufacturing.

The Penray Companies, Inc has been associated with Detroit Diesel since 1969 when the two companies were pivotal in the development of the first supplemental cooling system additive, the 2000 product. Since that time, Detroit Diesel and Penray have engaged in numerous, innovative research and development projects such as PowerCool 3000, fully formulated PowerCool antifreeze and PowerCool Need Release extended service life filter.

The heavy-duty division of Penray is known as Power Fleet Division. This division manufactures the PowerCool brand engine coolant products exclusively for Detroit Diesel. PowerCool products are one of the most recognized and respected cooling system maintenance lines in the heavy duty industry that include antifreeze inhibitors, supplemental coolant additives (PowerCool 2000 and 3000) diesel fuel additives, and the advanced PowerCool Need-Release extended service interval coolant filters.

Penray's Heavy Duty division also manufactures and markets a superior line of back shop chemicals for use by the Detroit Diesel distributors in the service areas. The Performance Products brand is engineered for use by professional Detroit Diesel service, maintenance and repair technicians.

PowerCool and Performance Products are available to Detroit Diesel distributors and customers in over 70 countries worldwide. They offer foreign language labes, with proper health warnings and catalogs for both the Performance and PowerCool product lines. Custom products are also frequently formulated to customers' requirements such as the 3149 family of non-silicated supplemental coolant additives.

The Penray sales and marketing departments fully supports Detroit Diesel on the Corporate and aftermarket, and distributor levels through a variety of programs to designated to illustrate the importance of proper cooling system and engine maintenance programs, to increase the profitable sales of these PowerCool products, to promote Detroit Diesel as the leader in heavy duty engines and engine technology.


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Bryan Riegner