Who makes Porsche's 993 Oil Filters?
11-30-2011, 07:57 PM
#16
Rennlist Member
Alex,
What's your experience with Mahle filters? These are what I have also. Sounds like most folks are recommending Porsche brand filters.
What's your experience with Mahle filters? These are what I have also. Sounds like most folks are recommending Porsche brand filters.
11-30-2011, 08:18 PM
#18
I am using them for years on both 993. I have a little smoke when the car stood longer at startup but this should be not due to the filter brand. I needed to test OEM Porsche to see if there is any difference.
11-30-2011, 08:23 PM
#19
Rennlist Member
I think if I went with another brand, I'd go with Canton-Mecca.
Who are they made by now?
Just after I bought my 993 a couple of years ago, I saw a Porsche branded oil filter and from what I remember seeing, it had Mahle printed on it as well. They looked 100% identical.
I have seen distributors carry oil filters made in their own country. For example, the original oil filter on my Honda CR-V was made in Japan; physical quality was first rate. All subsequent oil filters that I got from Honda Canada were made by Honeywell in Canada, even the one that I ordered from Majestic Honda in the US.
Here is a pic of a BMW branded oil filter for my motorcycle. It is a Mahle OC 91. You pay more, but look at the quality over the FRAM shown below...
By the way, here is a Mahle OC 91...
And here is a FRAM oil filter (no thanks) for my BMW motorcycle...
11-30-2011, 08:26 PM
#20
Nordschleife Master
AFAIK, the Mahle filters work fine on the NA 993 cars. The problem that occurs on the turbo cars is that the Mahle filters don't have the same check valve inside as do the Mann filters, and the Mahle filter can allow oil to leak into the turbo units. On the Turbo cars, this can also be corrected by adding the external, aftermarket check valves in the oil lines. I have experienced this failure TWICE on my previous TT.
Mahle is totally unresponsive to my complaints about their filters... even though there is a lot of anecdotal data available. Even if I had a NA 993, I would use only the factory (Mann) filters.
Mahle is totally unresponsive to my complaints about their filters... even though there is a lot of anecdotal data available. Even if I had a NA 993, I would use only the factory (Mann) filters.
11-30-2011, 08:47 PM
#21
Rennlist Member
Are they?
I think I saw Mahle printed on the Porsche oil filter.
Edited to add the attached image...Porsche Mahle OC 229...and Made in Austria.
There is nothing saying they haven't switched suppliers during a model run.
I think I saw Mahle printed on the Porsche oil filter.
Edited to add the attached image...Porsche Mahle OC 229...and Made in Austria.
There is nothing saying they haven't switched suppliers during a model run.
Last edited by IXLR8; 11-30-2011 at 09:18 PM.
11-30-2011, 11:28 PM
#22
Rennlist Member
12-01-2011, 07:59 AM
#23
There is nothing under the black sticker with PORSCHE etc on that is on the latest Purlator/Mann filters, just a black filter, no marks at all!
The Mahle/Knecht ones with PORSCHE on them are very old!
The weight of the the old Porsche Knecht/Mahle 930 number filter (OC54 for 911, 930 & 964) compared to the latest Porsche Mann version is nearly double. Many people use the OC54 over the Genuine Porsche one for this reason
The Mahle/Knecht ones with PORSCHE on them are very old!
The weight of the the old Porsche Knecht/Mahle 930 number filter (OC54 for 911, 930 & 964) compared to the latest Porsche Mann version is nearly double. Many people use the OC54 over the Genuine Porsche one for this reason
12-01-2011, 11:03 AM
#25
Rennlist Member
My large filter is a Mahle/Knecht unit. The secondary small filter is a Mann unit. They both have their own individual part numbers, but Autohausaz slaps on 993xxxxxxxx stickers on both. Someone earlier mentioned Porsche branded filters were made by Purolator. I could be wrong, but I have always thought Purolators were inferior to other filters, sold at pep boys/Autozone/Walmart etc...Please correct me if I'm wrong.
AFAIK, the Mahle filters work fine on the NA 993 cars. The problem that occurs on the turbo cars is that the Mahle filters don't have the same check valve inside as do the Mann filters, and the Mahle filter can allow oil to leak into the turbo units. On the Turbo cars, this can also be corrected by adding the external, aftermarket check valves in the oil lines. I have experienced this failure TWICE on my previous TT.
Mahle is totally unresponsive to my complaints about their filters... even though there is a lot of anecdotal data available. Even if I had a NA 993, I would use only the factory (Mann) filters.
Mahle is totally unresponsive to my complaints about their filters... even though there is a lot of anecdotal data available. Even if I had a NA 993, I would use only the factory (Mann) filters.
12-01-2011, 12:23 PM
#26
12-01-2011, 01:14 PM
#27
Seared
Rennlist Member
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12-01-2011, 01:37 PM
#29
Seared
Rennlist Member
Rennlist Member
The one & only time I've seen smoke from the tailpipes was the day I picked the car up. The PO had not started the car for some time, and the smoke stopped within moments.
My engine is dry (57,XXX miles), and not a puff in 6+ years.
Andreas
My engine is dry (57,XXX miles), and not a puff in 6+ years.
Andreas
12-01-2011, 02:54 PM
#30
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Leaking/smoking issues seems limited to the turbo cars. I ran the Mahle/Mann filter as supplied by Autohaus on my '96 C2 the entire time I had it and never had a leaking/smoking issue, ever. However, I had some leftover from owning that same C2, so I used them on my turbo......now it'll leak and smoke a little if it sits too long. This is the reason I bought the OEM units from Sunset.
Personally, I think the Mann or Mahle filter are perfectly fine. There is just something about the check valve design (that was fixed in the OEM parts and not the aftermarket parts) that the turbos don't like.
Personally, I think the Mann or Mahle filter are perfectly fine. There is just something about the check valve design (that was fixed in the OEM parts and not the aftermarket parts) that the turbos don't like.