centrifigul oil filters? thoughts?
 

Hey guys at $45 a filter, I was looking at centrigiul filters. Any thoughts? opinions? seems like a great idea, filters way more oil. can clean it out every few weeks, and will save you $$.

From what I've read on them, it sounds like a good idea. Another option might be a bypass filter. Amsoil has a setup and then there's that FS-2500. Definitely something worth researching.

Centrifugal filters are not replaced, they are cleaned.

What you two are talking about is a normal bypass filter.

He didn't say anything about a bypass filter. I just mentioned that a bypass filter setup could be another option instead of the centrifugal filter which he clearly stated in his post that you could clean it out every few weeks. I'm not trying to start a fight on here but it just seemed to me that you might have misunderstood something there.

The guys at Diesel Power put a centrifugal filter on their 87 F250 6.9. I haven't seen any updates on how its doing yet, but I don't think they put it on all that long ago, a few months maybe. I'll try to see if I can find the issue, if you want to read up on it.

When he said "Hey guys at $45 a filter" he was not describing any centrifugal filter I've ever seen. At the most they use a paper insert to make crud removal easier, many are just cleaned.

I think he was talking about the factory spin on style filters there, and that he wanted to go to a centrifugal filter to avoid having to spend 45 bucks on an oil filter every oil change.

Makes sense. The only two things I don't like about centrifugal filters is they consume a lot of oil pump flow and they require a gravity drain. But if you have the flow capacity, the filtering can't be beat.

A bypass filter drain can be routed anywhere, I put mine over the timing chain for additional lubrication beyond the normal splash oil.

Centrifugal filters only consume 10% of your oil flow, if that amount influences your oil pressure something is wrong.
Centrifugal filters have to be matched on engine size, oil volume and oil pressue. There are versions with a pressure switch activating the filter only when enough oil pressure is available to prevent pressure drop when hot idleing.They normally do operate at regular oil pressures between 3 and 5.5 bar or 40 and 70 psi.

The major disadvantage I see is the must have huge drainback above oil level into the sump. If you have the space the drain back can also be installed into the valve cover.
other than that the paper insert is done at the older models, the newer ones don't have that anymore you either simply replace the disposable rotor or alternatively scrape out the rotor with a spatula. This depends on models.
Cleaning is not that often nescessary. They have to be cleaned at a 3/4" inch of internal dirt build up. That means inspecting & cleaning every second oil change may enough.
Rover increased their oil change interval by two times due to the constant cleaned oil.
All modern european trucks and semis use them to fulfill emisson laws.

Just have in mind that bypass oil filters do also have to have an restrictor.