Thread: ('11-'14) Oil Filter for 2012 Impreza
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Old 04-11-2013, 08:37 PM   #138
Commander Keen
Scooby Specialist
Member#: 319157
Join Date: May 2012
Chapter/Region: MAIC
2012 Impreza 4DR 5MT


That is a bypass filter. It's installed in addition to the spin-on filter. I'm running an Amsoil bypass filter on another car which is rated at 98.7% at 2 microns. Depending on the model, they add 1, 1.5 or 2 quarts to the sump capacity. I'm considering installing one on the Impreza.
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