Filter
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The clear plastic housing on the Filter Minder™ (If
Equipped), allows you to view the amount of air pressure
drop across the filter element. It consists of a diaphragm
and a calibrated spring sealed inside the plastic housing.
As the air cleaner filter becomes clogged and air pressure
drop across the filter element increases, a yellow disc
travels along a graduated scale on the side of the Filter
Minder™.
The yellow disc will always show the greatest restriction
experienced by the filter element. When the disc reaches
the red zone, the filter element may need to be replaced.
There is no other time or mileage interval for changing
the air cleaner filter element.
After a new filter element is inserted, press the rubber
button on the top of the Filter Minder™ (if equipped).
This action will reset the yellow disc to the clean position.
CAUTION!
When using an engine cleaner or a degreaser, be sure
to wrap and tape the Filter Minder™ to protect the
plastic housing from damage and discoloration.
CAUTION!
Many aftermarket performance air filter elements do
not adequately filter the air entering the engine. Use
of such filters can severely damage your engine.
MAINTAINING YOUR VEHICLE 421
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