I'm looking for the right oil filter for my 2002 Jeep KJ (Liberty/Cherokee) 3.7L V6. Not sure when was the last time the oil and filter were changed (previous owner was family member who wasn't great with maintenance) so I'm guessing it's been longer than it should have.
The original oil filter part number is Mopar 04781452AA, which apparently has been replaced with 04781452BB and 04781452BF. I'm wondering if there's a way to know what the Bypass Relief Valve pressure is for these filters? I'm guessing it's 1 bar but I don't know.
There's several corresponding aftermarket filters, including Mann W 719/27 and Wix WL7077. Mann has a Bypass Relief Valve pressure of 1 bar but I can't find the pressure info for the WL7077, which is apparently a European part number (I'm in Italy and the car was purchased in Italy). On the Wix website it says WL7077 manufacturer is Wix Europe, and that the corresponding Wix part number is 51516XP and 51516 (which I believe have a lower Bypass Relief Valve pressure of 8-11 PSI). On another thread here someone said the American Wix 51315 crosses over to the WL7077 in Europe. The WL7077 is the only one I can get easily here in Europe but maybe the Mann is a better filter?
So I'm confused. First of all finding the original Mopar Filter in Italy is difficult and again I don't know what the bypass relief valve pressure is for it, not that it matters I suppose since it's the OEM filter. I don't know whether I should go for the OEM filter if I can find it off eBay or choose the Mann or Wix but again I don't know the valve pressure info for the Wix.
Another question is: if the oil and filter haven't been changed for a while and its a relatively old car, is a certain Bypass Relief Valve pressure better than another? My logic was that if its old oil and an old engine maybe it would be best to choose a filter that doesn't allow oil to bypass so that it gets filtered? Obviously it's an uninformed assumption on my part.
Any info on this would be really appreciated. Thank you and sorry for the long post.
The original oil filter part number is Mopar 04781452AA, which apparently has been replaced with 04781452BB and 04781452BF. I'm wondering if there's a way to know what the Bypass Relief Valve pressure is for these filters? I'm guessing it's 1 bar but I don't know.
There's several corresponding aftermarket filters, including Mann W 719/27 and Wix WL7077. Mann has a Bypass Relief Valve pressure of 1 bar but I can't find the pressure info for the WL7077, which is apparently a European part number (I'm in Italy and the car was purchased in Italy). On the Wix website it says WL7077 manufacturer is Wix Europe, and that the corresponding Wix part number is 51516XP and 51516 (which I believe have a lower Bypass Relief Valve pressure of 8-11 PSI). On another thread here someone said the American Wix 51315 crosses over to the WL7077 in Europe. The WL7077 is the only one I can get easily here in Europe but maybe the Mann is a better filter?
So I'm confused. First of all finding the original Mopar Filter in Italy is difficult and again I don't know what the bypass relief valve pressure is for it, not that it matters I suppose since it's the OEM filter. I don't know whether I should go for the OEM filter if I can find it off eBay or choose the Mann or Wix but again I don't know the valve pressure info for the Wix.
Another question is: if the oil and filter haven't been changed for a while and its a relatively old car, is a certain Bypass Relief Valve pressure better than another? My logic was that if its old oil and an old engine maybe it would be best to choose a filter that doesn't allow oil to bypass so that it gets filtered? Obviously it's an uninformed assumption on my part.
Any info on this would be really appreciated. Thank you and sorry for the long post.