OEM Oil Filtration Efficiency 50%@27μ / 99%@50μ - PeachParts Mercedes-Benz Forum

SUNRG · #1 09-27-2007, 03:12 PM

FWIW - i've seen some threads here regarding "who makes the best 616/617 oil filter", and i have some contacts with OEM supplier MANN, so i inquired about the PF 1055/1x oil filter:

PF 1055/1 x

50% --> 27 µ
99% --> 50 µ

Mit freundlichen Grüssen / Best regards

i expect 616/617 filters, regardless of the manufacturer are probably built to filter at similar efficiencies.

IMHO - considering these efficiencies, it's even more amazing that so many 617 engines are running strong for 500,000 to 1,000,000 miles without rebuilds.

cheers!

W123x3 · #2 09-27-2007, 03:56 PM

Do you know if that spec refers to the Full Flow or the Bypass section of the filter?

Tymbrymi · #3 09-27-2007, 05:12 PM

What is a "good" paper filter and a "good" bypass filter rated at?

deerefanatic · #4 09-27-2007, 09:42 PM

"Good" bypass filter's are rated at 5 microns or LESS....... Toilet paper types like I have are usually rated 1-4 microns, the cartridge types like ForcedInduction has are usually 0.5-1 micron, and centrifuges are rated at fractions of a micron...........

#5 09-28-2007, 03:47 AM

Centrifuge is by far the best way to go but they take up alot of space and require a large diameter gravity drain back to the pan. One benefit of a filter type bypass is that you can route the oil return wherever you like since it does not require a large pressure differential to move oil. That's a good opportunity to create a spray of clean oil directly onto the timing chain.

All the oil filters available except for two, the WIX 1364 and the "Made In Turkey" Fram filter, use cotton gin waste as the by-pass media. It is filled with debris and is very loosely packed. That eliminates any benefit of having a by-pass on the filter as it's already contaminated and allows the oil to create/follow channels around the cotton. Using a toilet paper or cartridge-type bypass filter gives the oil no choice but to pass through the filter media to be cleaned.

I use the full-flow WIX oil filter that lacks that offensive cotton gin waste. I also installed a small setscrew into the oil filter stem to block it's by-pass return since it's no longer needed.

Quote:

it's even more amazing that so many 617 engines are running strong for 500,000 to 1,000,000 miles without rebuilds

I know of only one legitimate case of an OM61x running to 1M miles without a rebuild. Several cars have reached 1M miles but all of them had at least 1 engine rebuild along the way, even the 4.6M km taxi had 5 or 6 rebuilds with at least one spare engine. I think 275-450K is a more realistic lifespan of these engines before a rebuild, which is still far above average compared to any g@sser and still good even compared to other automotive diesels.

JWJ · #6 09-30-2007, 07:45 AM

Quote:

Originally Posted by ForcedInduction

All the oil filters available except for two, the WIX 1364 and the "Made In Turkey" Fram filter, use cotton gin waste as the by-pass media.

Doesn't the Baldwin filter also use paper (non-waste) as media?

Diesel911 · #7 05-01-2008, 10:57 PM

Quote:

Originally Posted by JWJ

Doesn't the Baldwin filter also use paper (non-waste) as media?

Yes, in the picture it appears that both top and bottom are pleated paper elements:
http://catalog.baldwinfilter.com/
When I Emailed Baldwin Filters concerning the Micron Ratings they Claimed: the Full Flow (small lower) section to be 18microns and the by-pass at 15 microns.
However at the time I ask the question I had not looked into the rating systems of oil filters.
If these are "Nominal" ratings it means that they filter out %50 percent of that size or larger particles.
As best as I can tell from what I have learned this would be a Beta (or the greek letter B)18 micron=2 for the Full Flow part and a Beta(B)15 micron =2 with the "2" reresenting the %50. It could also be listed as a Beta Ratio 18/15=2/2
An "Absolute" rating, as an example I will use a Absolute 5 micron filter is listed as Beta(B)5microns=200 with the 200 representing it filtering 99.5% of the 5 micron particles or larger. "Absolute" rated filters are suposed to have a Beta rating of 200.
Here are some filter cross referance sites. Some of them will tell you the filters Beta, Nominal or Beta Ratio.
http://www.wixfilters.com/filterlookup/index.asp
http://www.filtermart.com/fpdbdb/fmccross.asp
http://catalog.baldwinfilter.com/

moonlite · #8 02-19-2008, 07:04 PM

Quote:

Originally Posted by ForcedInduction

I use the full-flow WIX oil filter that lacks that offensive cotton gin waste. I also installed a small setscrew into the oil filter stem to block it's by-pass return since it's no longer needed.

Is the setscrew into the oil filter stem necessary when switching to the WIX 1364 or equivalent filter?

I just looked at WIX's web site and found this for part # 1364
http://www.wixfilters.com/filterlookup/results.asp?PartNo=1364&imageField.x=0&imageField.y=0

#9 02-19-2008, 07:07 PM

Its not necessary but it reduces the amount of energy wasted pumping oil straight back into the pan without it doing anything.

moonlite · #10 02-19-2008, 07:13 PM

going through the WIX application guide, I found the part #51385

Part Number: 51385
UPC Number: 765809513853
Principal Application: Mercedes-Benz Cars (76-85)
All Applications
Style: Cartridge Lube Metal Canister Filter
Service: Lube
Type: Full Flow
Media: Depth
Height: 7.611
Outer Diameter: 3.469
Inner Diameter Top: 0.434
Inner Diameter Bottom: 0.965
Nominal Micron Rating: 32

Notice the micron rating

Jadavis · #11 02-19-2008, 07:27 PM

If it was not for the fact that these engines seem to do just fine with the above mention filters I would be concerned. I have a gear pump with a filter head on the outlet. I wonder how insane it would be to periodically topsider the oil out and then pump it through a filter back into the engine. I have a 25 micron, a 17 micron, and a 1 micron filter to choose from. All are absolute rated (99.5% effecient). Seem like overkill???

-Jim

deerefanatic · #12 09-28-2007, 09:32 PM

Yah, once I get my supply of Mann and OE MB filters used up, I'll go to the full-flow wix unit.........

pdxwaker · #13 09-30-2007, 12:02 PM

Quote:

Originally Posted by SUNRG

...i have some contacts with OEM supplier MANN, so i inquired about the PF 1055/1x oil filter...

Does MANN manufacture the fuel spin on filter as well? I've only seen Mahle and Bosch...

I'd be very interested in the filter efficiency of the fuel filter if you can dig this info up...

pawoSD · #14 09-30-2007, 01:45 PM

What does the OEM dealer/MB filter have in it....isn't it also cotton gin waste?

As for those turkish FRAM filters, I'd use one if I could find them.....but autozone around here doesn't carry them anymore. I might have them order me a couple just to see if they are indeed the wound string kind. (They can order them in) However I am worried that I will pay the $11 for them and find they are made in India or something.

I still have two Hengst filters and a Bosch filter laying around though. I have used Hengst, MB OEM, and Bosch for years with no issues....our 300D had a MANN filter in it when I changed the oil when we bought it....it now has a Hengst.

DeliveryValve · #15 10-04-2007, 10:46 AM

Quote:

Originally Posted by pawoSD

What does the OEM dealer/MB filter have in it....isn't it also cotton gin waste?

As for those turkish FRAM filters, I'd use one if I could find them.....but autozone around here doesn't carry them anymore.....

the OEM dealer/MB filter does have cotton gin waste.

I have 11 Turkey FRAMs waiting to be used in my garage back from the Pep Boy's $3.49 for each sale and 2 Mann filters.

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