Hi guys, I just recently learned that my 2008 Legacy GT required a fairly rare and special filter that I can't really get anywhere... From what I understand it calls for an unusually high bypass pressure in the OEM requirement. What exactly does this affect? I normally use the standard Purolator or Frams available at the parts houses and Walmart. It has 170,000 miles on it now and still runs great so it must not be doing much harm...
Standard filter at parts houses is the PH6607 or PL14615 but Subaru and Fram mention it actually calls for a PH9715 which is like a unicorn.
PH9715- Bypass valve setting 16-28psi
PH6607- Bypass valve setting 13psi
Your thoughts and expertise are welcome!
Standard filter at parts houses is the PH6607 or PL14615 but Subaru and Fram mention it actually calls for a PH9715 which is like a unicorn.
PH9715- Bypass valve setting 16-28psi
PH6607- Bypass valve setting 13psi
Your thoughts and expertise are welcome!