2 Quart oil filters using OEM Adapter - Chevy and GMC Duramax Diesel Forum
Maintenance Discuss scheduled maintenace, capacities, filter part numbers, etc.

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post #1 of 65 (permalink) Old 01-04-2020, 10:52 AM Thread Starter
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2 Quart oil filters using OEM Adapter

Incase anyone is interested there are several 2 quart oil filters available that's actually for early model small and big block Chevys, and many other vehicles with the same threads and diameter as the OEM Duramax oil filter, but longer
here's 2 that I was able to easily find specs on.
They don't have the by-pass valve which is set to open having 15-20 lb springs, IMO is a good thing not having, possibly returning dirty oil to the engine, also they don't have a anti-drain back valve, which concerned me a little with possibly having dry starts after setting.
With the angle of the oil filter this has not been a problem, and no-longer a concern.

Pictured from left to right.
AC Delco PF2232 30 micron OEM $9.00 @ Amazon - 2 qt Ac Delco PF932 30 micron $10.50 @ Amazon - 2 qt Donaldson P550832 20 micron $11.50 @ my local Empire Cat. which is a Donaldson dealer.
The Donaldson is a little harder to find for a good price, but I like the oil drain-back on it compared to the AC Delco PF932, which led me to start off with the Donaldson, making it now a 11 quart capacity having better filtering.
Oil pressure is just a few psi higher, a little harder to evaluate with the much colder temps we now have.
Attached Images
File Type: jpg filters 1.jpg (75.4 KB, 208 views)
File Type: jpg Donaldson.jpg (45.8 KB, 206 views)

Dan
2007.5 GMC Sierra 3500 SRW L.B."BLACK" C.C. 4X4 LMM Z71
DIY stock airbox mod, aFe ProGuard 7, OEM drop-in
EFILive ECM ATP - Heavy Tow Tune with Turbo Brake.
EFILive TCM Duramax Tuner
DHD Cold Side High Flow Intake Pipe, DHD PCV Re-Route, AirDog 4G100
Castrol Hypuron/Vecton 15W40 synthetic blend oil
Donaldson P550832 2 qt oil filter

2007 Yukon Denail "BLACK" 6.2 gasser
DIY stock AirBox Mod, K&N, Airaid intake, EFILive TCM only tuning

Last edited by D_R_C; 01-04-2020 at 11:29 AM.
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post #2 of 65 (permalink) Old 01-04-2020, 11:19 AM
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That Donaldson is a 30 micron filter. The same as a Fram or Wallyword. You have not done anything to increase filtration.....
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post #3 of 65 (permalink) Old 01-04-2020, 11:42 AM Thread Starter
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Quote:
Originally Posted by AlisoBob View Post
That Donaldson is a 30 micron filter. The same as a Fram or Wallyword. You have not done anything to increase filtration.....
You might consider re-checking the micron specs for the Donaldson P550832 it is a 20 micron filter.
One qt filter vs 2 quart filter will increase filtering overtime, pretty simple math it should be even for you.
https://shop.donaldson.com/store/en-...P550832/20534#
Click on "SHOW MORE"
As usual always condescending before thinking/searching/talking.
I thought you might have a intelligent response, you didn't, now your back on the ignore list.

Dan
2007.5 GMC Sierra 3500 SRW L.B."BLACK" C.C. 4X4 LMM Z71
DIY stock airbox mod, aFe ProGuard 7, OEM drop-in
EFILive ECM ATP - Heavy Tow Tune with Turbo Brake.
EFILive TCM Duramax Tuner
DHD Cold Side High Flow Intake Pipe, DHD PCV Re-Route, AirDog 4G100
Castrol Hypuron/Vecton 15W40 synthetic blend oil
Donaldson P550832 2 qt oil filter

2007 Yukon Denail "BLACK" 6.2 gasser
DIY stock AirBox Mod, K&N, Airaid intake, EFILive TCM only tuning

Last edited by D_R_C; 01-04-2020 at 11:46 AM.
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post #4 of 65 (permalink) Old 01-04-2020, 12:18 PM
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Originally Posted by D_R_C View Post
You might consider re-checking the micron specs for the Donaldson P550832 it is a 20 micron filter.


You obviously know nothing about filtration

https://www.dieselequipmentinc.com/products/p550832

My wifes panties are probably 20 micron, at 50% efficiency.
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post #5 of 65 (permalink) Old 01-04-2020, 12:36 PM
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Originally Posted by AlisoBob View Post
That Donaldson is a 30 micron filter. The same as a Fram or Wallyword. You have not done anything to increase filtration.....
Bob, Just for info, it says the donaldson is 20 Microns , you say its not? I looked at specs and won't claim to understand alot of techno babble.
Also what is a "wallyword" filter ?

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post #6 of 65 (permalink) Old 01-04-2020, 02:24 PM
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No worries, I'll explain it .....

At 50% efficiency, its catching half the particles at 20 microns and larger, and letting the other half through. That's pretty average filtration.

Most filters are rated and compared at "absolute" or 98.7% efficiency.

That Donaldson at 98.7% is probably 35 to 40 microns. Again, this is just an average , run of the mill filter. Just because it's twice as big doesn't mean or do anything.

Wallyword = Walmart. Their "Supertech" line of filters are in the 35 to 40 micron range at 98.7% efficiency. They cost $3.
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post #7 of 65 (permalink) Old 01-04-2020, 02:39 PM Thread Starter
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Originally Posted by carhauler View Post
Bob, Just for info, it says the donaldson is 20 Microns , you say its not? I looked at specs and won't claim to understand alot of techno babble.
Also what is a "wallyword" filter ?

Last edited by D_R_C; 01-09-2020 at 08:22 PM.
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post #8 of 65 (permalink) Old 01-04-2020, 03:09 PM
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He's been like this since the beginning, knows it all.


What I do know, is how to read and comprehend . You should try it sometime!
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post #9 of 65 (permalink) Old 01-04-2020, 04:44 PM
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Originally Posted by D_R_C View Post
20 micron @ 50% per Donaldson lube master the people that actually knows,(not someone that claims they know everything) it will filter even better as it gets dirtier.
You seem to talk in circles. You think the filter works better as the filter media gets used up, but you put on a filter twice as big so the media gets dirtier , slower. That makes no sense. I was told new cars come with those tiny oil filters just for that reason, to get dirtier quicker, to filter better.

The Amsoil EAO52 was clearly the best of the regular spin on filters in that filter test in both filtering and construction. 20 micron filter at 98.7% efficience. That blows your Donaldson away. Why put on a filter with half that?Amsoil says it's good for 20,000 miles. Thats why I run the Amsoil.
https://dmaxstore.com/products/?rout...product_id=544

Mr. Manners sells them too.
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post #10 of 65 (permalink) Old 01-04-2020, 04:55 PM Thread Starter
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It’s always been known as any filter gets dirtier less crap get thru, including airfilters.
I always disagree, because less air is going thru as well as oil.
If you disagree then give Donaldson a call.

It’s still better than the OEM, Baldwin, etc, your Amsoil EAO52 is a one qt filter = shorter life.

Dan
2007.5 GMC Sierra 3500 SRW L.B."BLACK" C.C. 4X4 LMM Z71
DIY stock airbox mod, aFe ProGuard 7, OEM drop-in
EFILive ECM ATP - Heavy Tow Tune with Turbo Brake.
EFILive TCM Duramax Tuner
DHD Cold Side High Flow Intake Pipe, DHD PCV Re-Route, AirDog 4G100
Castrol Hypuron/Vecton 15W40 synthetic blend oil
Donaldson P550832 2 qt oil filter

2007 Yukon Denail "BLACK" 6.2 gasser
DIY stock AirBox Mod, K&N, Airaid intake, EFILive TCM only tuning

Last edited by D_R_C; 01-09-2020 at 08:23 PM.
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