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AMSOIL Inc.

Superior Wisconson

1-800-777-7094

Mention Sponsor

Number 1126678

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Featured Article

Gear Lube White Paper

AMSOIL has come out with yet another white paper, this time on gear lubes.

Be sure and have a look, as these tests were done by independent labs, no sales pitches, just the facts. You have a look and decide for yourself, which gear lube do you want protecting your investment?

When you get rid of all of the advertising hype, the choice is clear.

Donaldson Endurance Air Filters

Donaldson Endurance™ Air Filters
for heavy duty applications

Donaldson Endurance™ air filters deliver cost-saving benefits:

• Longer Engine Life
• Longer Filter Life
• Ideal for Extended Maintenance Intervals
• Double Mileage Guarantee

Endurance Cross Reference

Donaldson Endurance™ Air Filters with exclusive nanofiber technology offer longer engine life, longer filter life, initial efficiency up to 99.99 percent and five times more capacity.

The nanofiber technology causes submicron contaminants to be held on the surface layer of smaller fibers. This filtration characteristic is only possible with this new type of air filtration technology. In on-highway applications, where the contaminant is primarily submicron in size, Donaldson Endurance filters cause less restriction than conventional filters with cellulose media. The smaller interfiber spaces of nanofiber technology have a higher efficiency and capture more contaminant.

The following illustration may help visualize these phenomena: Imagine two filters, a chain link fence and a mosquito net, with a tennis ball being a dirt particle. As you may have observed, a tennis ball will fit quite nicely into an opening of a chain link fence, but will obstruct the hole almost 100%. Now imaging the same tennis ball covering a mosquito net. The tennis ball, at the point of contact with the netting, will obstruct much less filter area than the chain link fence example. In fact, air will flow around the tennis ball all the way to the point of contact. It will take many more particles to obstruct the netting surface area than the chain link fence.

Donaldson Endurance™ air filters are guaranteed to deliver twice the miles between change intervals over cellulose air filters for on-highway applications or customers receive a new filter at no charge.

Capacity Graph

Efficiency Graph

Donaldson Endurance™ Air Filters With Nanofiber vs. Conventional Cellulose
Nanofibers have submicron diameters and small interfiber spaces, which result in more contaminant being captured on the surface of the media and lower restriction.	Red circles represent the diameter of a 2 micron and a 5 micron particle.	Cellulose fibers are larger than nanofibers, and have larger spaces between the fibers, causing contaminant to be held in the depth of the media and plug the airflow path; resulting in higher restriction and less capacity.

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