Stock air filter, how often should it be changed?

[BBB]

7,500?

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[IvanCRF]

7,500?

Per page 419 of the owner's manual:

http://www.fordservicecontent.com/F...-Owners-Manual-version-1_om_EN-US_07_2014.pdf

Every 30000 mi Replace engine air filter.
(48,000 km)

Since I live in the desert, I'll inspect it much earlier though.

 

[McCarthy]

I changed mine at 37k miles and it was too long. I'd go for 20k intervals tbh.

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