I normally use the Microgard air filters from O'reilly in all my vehicles. They seem to have done the job. As I get close to time to change them, I'm thinking about going with Wix as I have been satisfied with their oil filters. I've also thought about using the AC Delco filters due to good reviews and reasonable prices. Have any of you used the Microgard and one or both of the other brands? If so, how did they compare?
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