Doing some maintenance on my new to me Yukon and had an interesting find with the air filter. The replacement filter part number noted in the user manual appears to be a "high capacity" version (read: more pleats, thus, increased surface area). This may be common knowledge, but I thought I'd share.
OE on the left.
Lot of debris.
OE on the bottom.
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OE on the left.
Lot of debris.
OE on the bottom.
Sent from my iPad using Tapatalk