Recent content by rnsc

I was hoping to improve the collective insight on this subject. While it has been a good conversation, I am afraid I only succeeded in deepening the questions that cannot be answered. This is a very complex system, far beyond the questions I raised, and our narrow, simplified view of the...

Thanks! Busy with work this week, I hope to get back this weekend. Sorry about the gaps in attention.

Thanks for the new information, and I very much appreciate your many contributions to this thread. There are no O'Reily's in my part of the country, and I have never heard of FULL but will google them. I will take this opportunity to express my twist on being "fine" since that is a common...

I need to digest all of this. You all have certainly contributed to my understanding, though I don't think I have a silver bullet. I will summarize my conclusions in a week or so. In the mean time if anyone has any additional insights or comments please don't hesitate to send them on. Thank you!

Thank you for filling this hole.

Subaru specifies 23.2 in the 2016 Outback service manual for the FB25. Is there a different piece of literature that specifies 27 PSI?

I sent a message on their contact form (There is no email address or phone number). They did not respond either time. Yep, or just a graph of delta-p vs. flow rate. That might get us to the 90+% level on this. Yes, very very much so. But who wants to sit there for 10 or 15 minutes when it is 0...

Thanks for the additional insight and heads-up.

Yes, it is a glaring error to assume that just because something is made by the same company, even in the same factory, even looks the same, that it is the same. Time is money, so is material. Cheaper filter material may look the same. Or, it could be the same too! One has to wonder why oil...

How would anybody know if the engine wore faster than necessary, or typical due to inappropriate oil filter parameters? The engine wore out, you bought a new one.

Oh, so I would like to use a properly rated filter. What is properly rated? The car manufacturers only say to buy theirs, and don't tell us their ratings for anything, even though there are clearly better products. And if I knew, how could I judge the filters on the market against the enumerated...

Yes, but note that this is one of two senarios of what might be happening. (1) seems more reasonable and likely, especially or at least in the case of a synthetic blend PureOne filter per ZeeOSix's graph. But per ZeeOSix's graph the differential will never reach 23.2 unless it is clogged, at...

Yes, it clearly says that. Note that this is bypassing within the pump, meaning that the engine is getting less oil. We have no handle on how much oil that is since it is clearly a restricted bypass otherwise the pressure would never rise above 21 PSI external to the pump. But at least the oil...

Yes, but this is great, thank you. It says that it is more or less linear. For an example synthetic blend media. Of course this could be alot worse/different for cellulose etc. Yes, specifically at 14 GPM. Too bad we don't have a curve for that. Yes but they are also "Enhanced Cellulose"...