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Donaldson P-Series Filters

Donaldson is recognized for their advances in the industrial market and is rated the first choice by OEMs.AMSOIL is now introducing the P-Series of Donaldson filters to compliment the Endurance line. The expanded offering of filtration products features many applications that differ from, and several that coincide with the Endurance line. Donaldson P-Series filters offer premium filtration at a competitive price. AMSOIL now stocks all of Donaldson's most popular filter applications.

Please see the updated brochure on the Donaldson Line which supercedes the below information.

For most applications you can find your filter with this chart, but we can also match many off-hiway applications so please call 1-800-579-0580 if you need help.

Donaldson P-Series Lube Filters
Increased engine emissions control and tighter tolerances within the engine require high efficiency filters.

Donaldson P-Series filters are constructed with full synthetic or synthetic blend media for high efficiency. The media is embedded deeper into the sealing plastisol than conventional filters, allowing better sealing longevity. The lube filter can is constructed of heavy gauge steel, with many models having domed tops that provide superior pressure fatigue performance. The center tube allows more flow without compromising strength, and the louvered design eliminates tearing during pleat movement. The can and base plate are I assembled using a fully tucked seam, roll-formed threads, a nitrile sealing gasket and a compression spring holding all the components in place within the filter.

Air Filters Donaldson P-Series filter media is made up of specially formulated fibers designed to trap contaminants such as dust, dirt and soot before they reach the engine. The media is pleated to maximize the filter surface area and placed between rigid liners to provide stability and. support. A high quality filter seal is applied or built-in to the open end of the filter to prevent dirty air from bypassing the filter. Donaldson has developed an extensive range of air filter media to provide the best engine protection no matter what the operating conditions. For example, using the same particle size contaminant, for every eight grams of dirt passed through a Luber-finer filter, the Donaldson filter passed only two grams.

The white material is the Endurance NanoFibre.Coolant Filters
Donaldson coolant filters are designed to maintain the proper chemical balance and reduce contaminants in the engine cooling system. AMSOIL offers a complete line of Donaldson filters with supplemental coolant additive (SCA) technology for the majority of heavy-duty diesel engines service requirements. SCA's are
chemicals in the filter that are released into the coolant as it passes through. SCA's help resist corrosion and cavitation in the engine (Note: Although there is no need for SCA's when using AMSOIL Antifreeze & Coolant, the use of Donaldson Heavy Duty Filters along with AMSOIL Antifreeze & Coolant will not affect performance.). The heavy-duty construction works in a wide variety of operating environments. Donaldson filters feature heavy-duty thread plates, seals designed for extreme cold and heat, durable filter media and a unique center tube that increases flow and adds structural strength.

Fuel Filters
Today's engines are built to more stringent specifications and finer tolerances. Fuel systems, pumps and injectors require cleaner fuel to achieve better combustion and lower emissions. AMSOIL carries Donaldson's full line of replacement fuel filters, featuring the latest advances in filter media that makes the difference between engine power and engine problems.

Hydraulic Filters
Donaldson also develops, manufactures, and markets a full line of hydraulic filters for the protection of machinery and components in hundreds of applications—in the factory and on heavy duty-mobile equipment. In fact, Donaldson is considered the world leader in hydraulic filtration.

Prior Press Release: AMSOIL adds Donaldson Filters for Heavy Duty Applications

SUPERIOR, WI ~ AMSOIL, Inc. of Superior Wisconsin announced today that it has made available to its dealer network the full line of aftermarket replacement Donaldson Heavy Duty Air, Oil, Coolant, Fuel, and Hydraulic Filters. The advanced technologies from Donaldson filters include such industry leaders as Endurance™, PowerCore ®, Duramax ®, Synteq™ and Ultra-Web™. Donaldson filters are used in the over-the-road classifications up to and exceeding 33,000 GVW, off-road equipment such as construction and agriculture, plus industrial applications.

Alan Amatuzio, Executive VP and COO of AMSOIL, said, "The market potential is very exciting. The addition of Donaldson Heavy Duty Filters compliments our line of premium synthetic heavy-duty lubricants perfectly. This combination is a very good fit for our customers and our dealers."

Donaldson filters are now available through all AMSOIL distribution channels which include over 80,000 Dealers world wide.

About Donaldson Company, Inc.
Donaldson Company, Inc. is a leading worldwide provider of filtration systems and replacement parts. Founded in 1915, Donaldson is a technology-driven company committed to satisfying customer needs for filtration solutions through innovative research and development. Donaldson serves customers in the industrial and engine markets including contamination control in fluid power systems, bulk fuel and lube filtration, in-plant air cleaning, compressed air and gas purification, power generation, disk drive and microelectronics filtration, off-road equipment and trucks. Our 10,000 employees contribute to the company's success at over 30 manufacturing locations around the world. Donaldson is a member of the S&P MidCap 400 Index and Donaldson shares are traded on the New York Stock Exchange under the symbol DCI. Additional company information is available at

AMSOIL INC. is "The First in Synthetics"® and the largest independent manufacturer and recognized leader in synthetic lubrication since 1972. AMSOIL products are distributed throughout the United States, Canada, Puerto Rico, New Zealand and in 26 countries worldwide. For more information about AMSOIL synthetic lubricants and performance products visit or call AMSOIL at (715) 392-7101 or 1-800-777-8491. AMSOIL INC., AMSOIL Building, Superior, WI 54880.

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