Donaldson Filter for FL500S/FL2127?

[McRightclick]

Was browsing around Donaldson's website and noticed they appear to sell a filter for applications requiring either the FL500S or the FL2127, the P577066. Has anyone had any experience with these, or with Donaldson oil filters in general?

They don't give a 99% or 99.9% micron rating but they do claim 50% at 6 microns. Does anyone know how that stacks up against the PGI 99% at 20 micron filters?

 

[ZeeOSix]

hey don't give a 99% or 99.9% micron rating but they do claim 50% at 6 microns. Does anyone know how that stacks up against the PGI 99% at 20 micron filters?

Filters that are 99% @ 20u will typically be around 70-80% @ 5-6u.

 

[MarvinTheAndroid]

Donaldson filters in general, the Donaldson Blue filters specifically, are held in very high esteem as far as build quality and filtering capabilities. WCW did a side by side cut and post of the Donaldson P577066 and Baldwin B7449, and IIRC, the glue was pretty sloppy in the Donaldson. Given the very high regard Donaldson is held in, I can't help but wonder if Donaldson has subcontracted production runs of certain filters that fall outside its main wheelhouse. Definitely not conclusive, but Google AI suggests this to be true. That said, one can get the B7449 locally for $5.99, and the P577066 for $6.99, so they're very similar price wise in the Atlanta area.

Was browsing around Donaldson's website and noticed they appear to sell a filter for applications requiring either the FL500S or the FL2127, the P577066. Has anyone had any experience with these, or with Donaldson oil filters in general?

They don't give a 99% or 99.9% micron rating but they do claim 50% at 6 microns. Does anyone know how that stacks up against the PGI 99% at 20 micron filters?

 

[ZeeOSix]

^^^ Strange that the Donaldson has that flat spiral spring bypass valve used in Purolators.

 

[McRightclick]

Donaldson filters in general, the Donaldson Blue filters specifically, are held in very high esteem as far as build quality and filtering capabilities. WCW did a side by side cut and post of the Donaldson P577066 and Baldwin B7449, and IIRC, the glue was pretty sloppy in the Donaldson. Given the very high regard Donaldson is held in, I can't help but wonder if Donaldson has subcontracted production runs of certain filters that fall outside its main wheelhouse. Definitely not conclusive, but Google AI suggests this to be true. That said, one can get the B7449 locally for $5.99, and the P577066 for $6.99, so they're very similar price wise in the Atlanta area.

Hmmn, agreed that that doesn't look very good. Maybe I'll pick one up just for curiosity to disassemble and see if the new production stuff is any better.

 

[fantastic]

Donaldson filters in general, the Donaldson Blue filters specifically, are held in very high esteem as far as build quality and filtering capabilities. WCW did a side by side cut and post of the Donaldson P577066 and Baldwin B7449, and IIRC, the glue was pretty sloppy in the Donaldson. Given the very high regard Donaldson is held in, I can't help but wonder if Donaldson has subcontracted production runs of certain filters that fall outside its main wheelhouse. Definitely not conclusive, but Google AI suggests this to be true. That said, one can get the B7449 locally for $5.99, and the P577066 for $6.99, so they're very similar price wise in the Atlanta area.

It looks like it's Purolator built (sloppy glue & all), looks like they very well let the others make them. Goes along with with lower efficiency as well. I hold Donaldson very high in their OEM air filter quality however.

Equivalent Purolator is the 22500 model. You can see the specification sheets for all three Purolator filters below. Also, you can see that Ascent tested the PBL22500 "Boss" filter 99% at 34 microns (a little better than what the spec sheet shows). However, the Classic red can & Purolator One filters are better efficiency both 99% at 25 microns (With the Classic 50% at 8um & One 50% at 10um).

Thread 'Purolator Boss PBL22500, One PL22500, Classic L22500 Specification Sheet's'

Dec 28, 2023

The Purolator Boss PBL22500 was the filter used in Ascent Filtration Test that resulted in 99% at 34 microns but this one shows 99% at 46 microns below.

Ascent Test Can Be Seen Here

Specification Sheets for Boss, One, & Classic below.

• fantastic
• Replies: 26
• Forum: Engine Oil Filters

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