I just finished the oil change for the first time. I bought a cartridge from my local Porsche dealer, and an STP cartridge as well to compare the two. They appear identical, same pleat depth and pitch. However, the filter I removed has very different flanges than either of these two new ones. Refer to pic.

The on the left has a much bigger aperture than the one from Porsche. The flange on the left (after it has been cut off for the inspection for metal shavings) is the one I took off and has a rubbers seal on the ID of the aperture, and fits nicely over the nipple. The one on the right is much smaller, and I couldn't get it over the nipple. I tried to use the canister to help force the filter flange over the nipple, but I couldn't get the screw started. I had to score the inside of the paper to get it started.

Is this normal?

 

the filter should slide and lock onto the post easily with a little push. if it doesn't, don't use it.

STP and Fram are cheaply made. If the top and rubber part of the filter are not sealing to the post, the filter becomes useless.

IMO, use only german made parts or try WIX.

 

ditto

 

+1....I rather paid a little more than a lot later on....

 

Okay, but what option do I have when the Porsche filter is not similar to the one that I took off? From the picture, which end piece is correct from you experience?

 

One on the right in your pic.

 

Hmm. Djantlive indicates a "rubber" piece. The one on the right - the Porsche part - doesn't have a rubber piece, but the one on the left does.

 

No rubber in the stock filter. He's talking about the aftermarket filters.

It's just a paper filter, paper on the top and bottom, paper in the middle. The hole in the filter fits snugly over the tube, it doesn't float around at all.

Then there is an o-ring that goes on the filter housing. That's all there is to it.

 

Which one is right? Seriously. Porsche product designed for Porsche by Porsche vs. non Porsche product... U can answer this for yourself

 

1999 - 2001 no rubber piece; 2002 - 2005 yes rubber piece. Assuming your P-car is a 2002, the latter is correct. At least by design, the one on your left in your original pic. Nonetheless, I would use OEM: 996-107-225-60-OEM, or OEM supplier (aftermarket): 996-107-225-60-M45. Pelican Parts supplies both: http://www.pelicanparts.com/catalog/..._pg1.htm#item0

Good luck.

 

Thanks all. This was very helpful After visiting a couple of local parts stores, I found that the one I took off - left - is a Wix filter. I compared the numbers. I also went to NAPA, and it was identical to the Wix. Even the part number, except for one digit, we're the same.

 

Are you swapping it out then? Did you pick up a couple for later? Good luck!

 

The level of the oil filter is much higher than the drain plug. Does anyone know how much oil of the 9.5 quarts will drain out if I just change the filter?

 

Depends on how quick you are. I would have a quart on hand. Hopefully, you would lose less than that. FYI, your instrument panel oil indicator should help. Keep in mind that the difference between the High mark and the Low mark is 1.5 quarts. Good luck.

 

I've heard only 1/2 qt from previous threads. Go for it. People who overfill use this trick to drain out about 1/2 qt. Good luck.