OEM Oil Filtration Efficiency 50%@27μ / 99%@50μ
 

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:

http://www.mann-hummel.com/mf_prodka...images/371.jpg

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!

Bypass or Full Flow?
 

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

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

"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...........

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.
http://www.wixconnect.com/images/filters/1364_1.gif

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.

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

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

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...

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. :rolleyes: 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.

I've used Mann, Hengst, Wix, & MB-OEM....... Mostly Mann's............

Have 1 man and 1 MB-OEM hanging around...... Then it's full-flow wix.........

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. :D

So PEP Boys supposedly has the Turkish FRAM's? I was looking at autozone yesterday and in their updated filter catalog for this year it doesn't even list the FRAM filter as available anymore....just some STP filter, which I looked at, it actually doesn't look that bad. It was better than the last time I looked at an STP there....this time it was packaged in a plastic bag, included three copper washers and the gasket in another bag, and appeared to have a very fine paper material inside the upper section of the filter. Also, I couldn't find a trace of cotton gin waste in looking at it from the outside. My hengst had pieces falling off of it. :eek: :dizzy2: It was made in India, but I wonder if they improved them a bit? The package was brand new, they must have just gotten them in. The price was $9.29...a bit steep to buy/saw open....:rolleyes: I'll look at PEP boys and see if the Turkish Fram's still exist there....

I forgot to list that...... I've also used an STP once.......

None of em have killed my motor yet.. :D

I have used the STP filters a couple of times now, and it seems like a decent filter....

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