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Old 03-17-2004, 12:15 AM   #1
JonnySubaru
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Default Stay away from K&N oil filters!

So, faced with the decision to buy a fram, pennzoil, or K&N, the K&N seemed like the safest choice for quality. Wrong!!!!

After a few weeks, the filter began leaking from within the "nut" that is spot welded onto the top of the filter, and left oil down the passenger underside of the car. I have no clue how it the leak got progressively worse... but by the time I brought it to the dealer it had lost over a quart of oil, and barely read on the dipstick. If I had been in the middle of the desert, I wouldn't have noticed until it was too late.

I'm guessing that the oil made its way through on of the welds, but it was obscured by the nut.
My recommendation? Stock up on OEM filters, or use anything except K&N. Even if this is rare, it can cost you your motor.
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Old 03-17-2004, 10:07 AM   #2
Jon Bogert
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So you got a bad filter? OK.

K&N filters are extremely high quality and one of the best aftermarket oil filters available.
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Old 03-17-2004, 10:50 AM   #3
z&cobb
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Quote:
Originally posted by Jon Bogert
So you got a bad filter? OK.

K&N filters are extremely high quality and one of the best aftermarket oil filters available.
I didn't even know K&N made oil filters.

A high flow oil filter for more HP!
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Old 03-17-2004, 12:04 PM   #4
JonnySubaru
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Quote:
Originally posted by Jon Bogert
So you got a bad filter? OK.

K&N filters are extremely high quality and one of the best aftermarket oil filters available.
That's what I originally thought. The o-ring seal is beefy, and supposedly they have the highest burst-strength in the industry. What I'm saying is that the "nut thingy" welded to the top seems to be the weak link.

That $10 filter nearly cost my my motor.

Edit... and by the way, a Suby mechanic verified that it was leaking... not just me.. the weekend mechanic!
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Old 03-17-2004, 05:05 PM   #5
Hayes
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Not the first time I've heard of problems with K&N oil filters and also their air filters.
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Old 03-17-2004, 05:34 PM   #6
poison
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Default

I have used K&N oil filters and have been extremely impressed with the build quality and the info about them on www.bobistheoilguy.com.

I like the idea of the high flow with good filtration, but I am not sure I need it in my TS. I am using a PureOne now, which filters better than any other besides the Mobil1. The build quality on the pureone is nowhere near that of the K&N. Of course that says nothing about its filtration qualities.
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Old 03-17-2004, 09:57 PM   #7
Pakin
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Nothing is perfect. There will be some bad apples in any good or "premium" quality brands, even OEM.

Otherwise there would be no need for locks in our cars parking in a dark alley.

-paK +2
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Old 03-18-2004, 10:35 AM   #8
rankink
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Quote:
Originally posted by Pakin
Nothing is perfect. There will be some bad apples in any good or "premium" quality brands, even OEM.

Otherwise there would be no need for locks in our cars parking in a dark alley.

-paK +2
True. No problems with the two K&N oil filters I have had on my car.
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Old 03-18-2004, 01:39 PM   #9
JonnySubaru
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Default

Yep... I guess the moral of the story is to check weekly for leaks! The confusing thing is that it didn't start gushing for 2 weeks. I could see no signs of damage on the filter or anything.

It's just hard to stomach that something like that can cost you your motor.
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Old 03-18-2004, 05:40 PM   #10
LinuxGuy
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Have you contacted K&N about the problem?
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Old 03-18-2004, 08:14 PM   #11
shinsain
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LIKE A
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Did anyone know that STP made oil filters?

I didn't!

So I bought one. Havn't had any problems yet. However, I'm not really an oil filter geek.

Anyone have any opinions on the quality of these? I know STP's other prouducts are tested and work very well. I personally have used them for a long time.
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Old 03-18-2004, 09:33 PM   #12
Rickyh
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hmmmm. i have always used fram on every car i had.
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Old 03-19-2004, 10:07 AM   #13
Hayes
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I and many of my friends have run 150,000 to 375,000 miles using the Subaru (purolator) or autoparts PureOne PL14460 filter with no problems to risk changing to a much higher priced (maybe better) welded can filter. I think not for me.
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