Originally Posted By: Jim Allen
Originally Posted By: Dead_Zone
Originally Posted By: Motorking
Hello,
I am the tech director at FRAM. The Ultra filter is 99% efficiency at 20 microns, the Pure One is 99% at 25 microns. The Ultra filter has less than a 1.5psi pressure drop. I have been using them on my 434ci windsor stroker Mustang and Turbocharged 350Z (VQ35) with great success.
If your a frequent oil changer, our racing filters can flow 18gpm, are 90%@20 microns and have 500psi burst strength.
Thanks for your response ..
Yea but there is no Ultra cross to ph3950 .. True there is XG3950 but that's the old X2 filter ( not the new Ultra ). If you have Ultra for me then i'm definitely buying a bunch of these !
Awaiting for your response ..
The older Extended Guard XG were 99% @ 25 um. Try looking up by application rather than crossing. AFAIK, all the XG numbers translated to Ultra... same numbers but a slightly different filter. I wouldn't be afraid to use an older XG if that's what you are finding.
It doesn't work that way .. I mentioned before that factory filter doesn't work with me anymore, not sure if you went through the whole thread or not ! Thank you..