DanW
Well-Known Member
That's a good filter. I could see that one subbing in if I couldn't get my hands on a Fram. Those numbers outperform Mobil 1 and Wix (Napa).Any of you guys used a royal purple filter to test durability? Synthetic media with 99% at 25 microns and 80% at 10 microns. Seems really good.
I'm betting it is a Purolator Boss. They show 99% at 25 microns, too. Also rated for 20k miles. Update: Their website shows 15k for this one, but that may be old info. Not sure. Still a good solid filter in terms of filtration.
I think Amsoil markets a good one, too. I'll have to check.
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