Ok, so I bought a CAF for nearly $30 from advance auto parts made by car quest. Nowhere on the filter does it actually have written "air flow" with an arrow. I have been reading all over the Internet that when it has an arrow alone (doesn't actually say "air flow" next to the arrow), that Arrow could mean "this side up" OR, it could mean "airflow goes this way". I know for a fact that my Cadillac ATS has its airflow coming from top to bottom, so I just went with the arrow on the filter meaning airflow direction. The only thing that is throwing me off now is that with the filter placed in that position (arrow pointing down to go with the airflow), all of the wording, etc. on the filter next to the arrow is upside down. Conversely, I have also seen pictures on the Internet of filters, that when the arrow is pointing down in the direction of the airflow, that the wording next to the arrow is visible right side up. I'm still not positive which way to place the filter. Any help from you guys would be greatly appreciated
Ps. Maybe another way to look at it/ask a question is on which side should the charcoal side of the filter be? Should the charcoal side be hit first by the incoming air or should it be on the bottom where the non-charcoaled side gets hit with the incoming air first?
Ps. Maybe another way to look at it/ask a question is on which side should the charcoal side of the filter be? Should the charcoal side be hit first by the incoming air or should it be on the bottom where the non-charcoaled side gets hit with the incoming air first?
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