Engine/Transmission (1998.5 - 2002) Does anyone know the GPM of the oil filter and its micron rating requirement?

[rweis]

On a 24 valve (2002),



What is the flow rate of the oil system?



What is the micron requirement of the oil filter?



Has anyone ever used the cleanable metal oil filters like the RACOR LFS60 (28 micron, 20 gpm) or LFS90 (28 micron, 45 gpm)? You could clean them more often and maybe get a better oil filtering job done more consistently. They are designed for larger engines than ours, so should work. Would pay for itself over time.



How small in microns should a bypass filter be able to filter? Is there a lower limit that would be too small (1 micron?, 2 micron?, 3 micron?, ... . ) that it may filter out the additive package (do not know even if that is possible). The RACOR LFS 802 says it will filter down to the 1 - 5 micron level at 1/2 gpm.



How would synthetic oil vs dino oil be effected? Any difference in the filtering?



Just kicking around some ideas.



I change my dino (Delo 400) every 5k or about 5 times a year. I realize that part of the oil change is puting in a new additive package and removing particulates that the "regular" oil filter does not get. This is not an idea to not put in a new additive package every 5k, but have a better more consistent filtration at smaller particulate levels. The bypass filter would still have to be changed every xxk miles, but the high flow filter would only have to be cleaned every 5k miles.



Bob Weis

 

[Hohn]

Bob, I remember seeing a post on here about the efficiencies of the regular and stratapore filters. I'll see if I can find it...



Got it! Found from a post by WWalters:

Vaughn, I would have to disagree with your statement that the Fleetguard Stratapores are the best filters for the Dodge CTD. I've done a little research on the subject. According to Fleetguard, the Stratapore is efficiency rated at 100% on 30 micron size particles and 60% on 10 micron size. The Donaldson Endurance filter is rated at 98. 7% on 15 micron size particles and 50% on 7 micron. I was told by Amsoil tech support that the Amsoil Superduty filters have a nominal rating of 7 to 10 microns. That's as technical as they would get. Based on this information, I would say the Donaldson is the best filter and the Amsoil Superduty is second. Now, what I'm assuming is the above data is for the first pass through the filter. Other than that who knows. I have used both the Stratapore and the Superduty. Both filters feel hefty and have the large holes that you referred to. The Amsoil filter is slightly larger and when I remove it, I don't have to use a large ziplock bag to catch any spilling oil as I have to do with the Stratapore.



I just recently purchased a Donaldson Endurance filter for my truck and it's about the same size as the Stratapore. It doesn't feel quite as hefty and the holes on top of the filter are smaller. The holes inside the filter are also smaller and they are shaped differently. They have a retangular cover over them that is open on both ends so the oil is directed up and down as opposed to straight out from the filter media. I just thought that I would pass that info on and before anyone says it, I realize that neither the Donaldson or Amsoil filters are on the Cummins approved list as is the Stratapore.



One other bit of information that most of you probably already know. From what I've read, most of the experts say that 60% of engine wear is caused by particles in the 5 to 20 micron size. Obviously a good oil by-pass system would be needed to pick up the particles that are 5 microns or smaller. If you can believe the claims of Donaldson and Amsoil, their spin-on, full flow filters do a pretty decent job of removing the particles that are in the most damaging range.

Justin