AMSOIL now offers Ea Pre-Filters (EaPF) for racing
and off-road applications. AMSOIL Ea Pre-Filters prevent large
particles from sticking to EaAR and EaAU Filters and blocking
the flow of air.
What Are Pre-Filters?
Ea Pre-Filters fit over the top of existing air
filters. These polyester mesh bags feature an industrial grade
elastic band at the opening to ensure the pre-filter does not
slide off.
Why Use Pre-Filters?
Racers and off-road enthusiasts subject their
vehicles to some of the most severe conditions possible. These
vehicles operate in areas of heavy dirt and mud that gets slung
into every crack and corner, often clogging air filters. AMSOIL
Ea Pre-Filters are designed to keep larger particles from getting
into and clogging the pleats of air filters. When an air filter
is clogged, the engine loses horsepower and, in the case of Ea
Air Filters, the filter must be cleaned. There is no vacuum or
compressed air available on the race track or out in the swamp,
but an Ea Pre-Filter is easily removed and shaken free of debris
in seconds.
AMSOIL Ea Pre-Filters
AMSOIL Ea Pre-Filters are constructed with woven
mesh that contains uniformly-sized openings. They are oil-free,
so the dirt will not stick to the bag and create a loss of air
flow and horsepower. Several Ea Pre-Filters are treated with a
hydrophobic water repellent process that helps prevent moisture
from damaging air filters. This proprietary process is done at
the mill as the pre-filters are created, not sprayed on, so there
is no loss of air flow. While Ea Pre-Filters are effective in
repelling water, they are not waterproof.
Ea Pre-Filters prevent particles down to 0.005”
from getting to the air filter without significantly reducing
air flow. Particles larger than 0.005” generally just fall
off the pre-filter.
Will Not Block Air Flow
AMSOIL Ea Pre-Filters will not cause any significant
reduction in air flow. In fact, AMSOIL EaAU and EaAR Filters allow
more air flow than the engine can process, so adding an EaPF will
not prevent a more-than-adequate amount of air flow from entering
the engine.
Cleaning Instructions
To clean AMSOIL Ea Pre-Filters, shake off any
excess dirt and, if necessary, soak in soapy water. After soaking,
agitate the EaPF to remove any remaining debris and grime, shake
off any excess water and air-dry. Ea Pre-Filters used in racing
applications should be inspected after every race to determine
whether or not they require cleaning. Ea Pre-Filters used in regular
applications should be cleaned every 3,000 to 5,000 miles. AMSOIL
Ea Pre-Filters should be changed every six to 12 months, or as
conditions dictate. For application information, consult the chart
below:
