Subaru oil filters
#1
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Subaru oil filters
I have a 95 Legacy and a 98 Forester. Both take a PH 3593A filter. I now also have a 2005 Legacy that takes a PH 9715. The threads are the same and the gaskets look the same. the PH 9715 is just physically smaller. I would like to use the PH 3593A if possible because I buy them by the case.. Does anyone know if they are interchangeable?
#2
Probably different internal bypass valving or inlet/outlet size not a good idea but acceptable if you do regular oil service on them wouldn't "push" the interval though IF it fits without leaking.Risky at best like to keep with recommended stuff but I have the liability issues to consider as well.