largest RB/BB filters - Baldwin BT238 and Donaldson P551603

[Ray S]

The catalog
https://www.baldwinfilters.com/cont...e/EMAM/EMAM_Baldwin_Product_Guide_Form562.pdf
appears to show that the BT238
https://ph.baldwinfilters.com/baldwin/en/product/baldwin-spin-on-lube-filters/bt238
3/4-16 thread, 4 1/4OD, 7 11/32len, G381-A gasket, AD, HBP (anti-drain, 18-25 PSID High Pressure By-Pass Valve)
Micron Rating: 9.8 Nominal; 27 Absolute
is a spin on match for my 413-1 application.
I could fit a 12" long filter if there was one - before it hit the RV radiator.
Anyone have a critique of this selection before I grab it?
Running 10w-40 oil and good oil pressures.

$23 on Amazon

 

[ZeeOSix]

Micron Rating: 9.8 Nominal; 27 Absolute

Means: 50% @ 9.8u and 98.7% (call it 99%) @ 27u.
Not bad efficiency, middle of the road.

 

[Ray S]

My thinking was that it would be good full flow much of the time, and, last a while before replacement.

 

[ZeeOSix]

My thinking was that it would be good full flow much of the time, and, last a while before replacement.

The larger size won't give you more flow, but it will however decrease the delta-p across the filter. And yes, it will longer with the higher holding capacity due to size and increased media area.

 

[Ray S]

I saw that the same size (different thread) Mopar Cummins has a 60um rating...

 

[ZeeOSix]

I saw that the same size (different thread) Mopar Cummins has a 60um rating...

They don't give any info at what efficiency that 60u is at. But I'd say it would probably be worse than the Baldwin.

 

[Ray S]

They don't give any info at what efficiency that 60u is at. But I'd say it would probably be worse than the Baldwin.

I do see a Highfil Chinese version claims

Micron Rating

3.000 Mi

if you believe it.

This has a list

FRAM Oil Filter for 5.9 Cummins	20,000 Miles	25
BOSCH Oil Filter for 5.9 Cummins	15,000 Miles	20
Chrysler Oil Filter for 5.9 Cummins	5,000 Miles	30
Cummins Filtration Oil Filter for 5.9 Cummins	15,0000 Miles	30
FRAM Oil Filters	10,0000 Miles	–
WIX Racing Filters Oil Filter for 5.9 Cummins	–	20
K&N Oil Filter for 5.9 Cummins	20,000 Miles	5	?
BALDWIN Oil Filter for 5.9 Cummins	5000 Miles	30
Donaldson Oil Filter for 5.9 Cummins	5000 Miles	15
Napa Oil Filter for 5.9 Cummins	–	19

The Cummins models have more selection due to demand I'm sure.
Here

The MOPAR branded filters are a standard cellulose (paper) filter rated at 35 microns at 98.7% efficiency.

And they have their own thread.

I'm still not seeing a reason to NOT use the BT238