2005 XG350 oil filters

I don't think there is anything remarkable about Hyundai filters. However, there are reasons to avoid some of the generic filters and even the low-end brand names such as Fram. Many of them are cheaply made using paper end caps on the filter media and inferior anti-drainback valves, the latter which can cause valve-train clatter during cold starts.

Matt

If you're going to use aftermarket filters (I do), go with something like the Purolator Pure One filter. It's a high quality product and the specifications are in line with Hyundai's requirements.

Yes, there is at least one web site that has a bunch of filters that a guy cut apart and dissected. He didn't have a way to test them for filtration, etc., but just looking at the internal design, components and type and amount of filter media was enlightening. It didn't take a rocket scientist to see the difference between the standard Fram and Wal-Mart generic filters and a real filter like a Purolater, NAPA Gold, etc.

Matt