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Opinions on K&N OIL filters...

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bryanl said:
By whom? Cite performance results, please. Demerits will be issued for any attempts to justify filter quality on the basis of internal appearance.
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C'mon, give ZV a little credit. A lot of us have known him long enough to know that he doesn't blow smoke up our a*ses 😉
 
ajskydiver said:
I agree.

Doubly so if your vehicle is under warranty -- don't give them any reason to deny a valid claim.
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This.

Only tests I've seen indicate the K&N oil filters do their job very well.


So what? The factory filters also do the job very well. You don't NEED a filter to do any better.

Other than from not changing their oil or letting the level get low, nobody here can name a single, solitary failure caused by oil. Not one. It simply does not happen. Oil does not cause engines to fail.

You can have your oil changed at Jiffy Lube and use their crap filters, and as long as you change it regularly, you'll never have an oil-related failure.....so why bother spending the extra money?
 
bryanl said:
By whom? Cite performance results, please. Demerits will be issued for any attempts to justify filter quality on the basis of internal appearance.
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If you can't be bothered to check the link to the comparison test that has already been linked in the thread, you're not going to look at any link I provide, so it's not worth my time to bother.

ZV
 
I use K&N on my Supra because I haven't seen anything that would suggest they're low quality filters, and the nut on the end makes it very easy to get the filter off. For anyone that has changed a filter in an MK3 Supra, you know what I'm talking about.
 
Skoorb said:
Why even debate it, go with OEM. Unless somebody can actually prove that an OEM oil filter is inferior to K&N, which is rather doubt they can do. After all, if they clearly were better, OEMs would simply pay the extra couple of bucks and have a huge deal with K&N, especially with power train warranties up to 100k these days. I have trust in the OEM filters, not some after market sold at Walmart next to the magic jacks.
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The Nissan Filter for my car is a cheap fram filter with the cardboard endcaps..ect

So OEM is not always better.

K&N and M1 are made by champion and they use a synthetic filter media which is better then paper filter media which my OEM uses.
 
Pacfanweb said:
This.

Only tests I've seen indicate the K&N oil filters do their job very well.


So what? The factory filters also do the job very well. You don't NEED a filter to do any better.

Other than from not changing their oil or letting the level get low, nobody here can name a single, solitary failure caused by oil. Not one. It simply does not happen. Oil does not cause engines to fail.

You can have your oil changed at Jiffy Lube and use their crap filters, and as long as you change it regularly, you'll never have an oil-related failure.....so why bother spending the extra money?
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You can have accelerated wear without total failure. Why not filter your oil the best you can?
 
Throckmorton said:
You can have accelerated wear without total failure. Why not filter your oil the best you can?
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Sometimes absolute filtration can be harmful. This is what I found on my car with the M1 filters. They were so restrictive that they would go into bypass too often. I would rather have slightly less absolute filtration to allow for more flow.
 
hmm. I thought bypass was only if PSI fell down to like 10or so, and the filter got clogged up. I was reading and yea K&N and M1 both are the same filter inside.

How do you notice if it goes into bypass?
 
thescreensavers said:
hmm. I thought bypass was only if PSI fell down to like 10or so, and the filter got clogged up. I was reading and yea K&N and M1 both are the same filter inside.

How do you notice if it goes into bypass?
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As I said earlier in this thread, on the filters i've opened they are similar, not the same. Aside from using a test stand, I don't know how you could tell while installed on a car.
 
Marlin1975 said:
Where did you hear that?

Bosch and another small company bought out Purolator but I think they still use the same factory and process.
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It was a while back I admit but I read a whole website devoted to oil filters, their qualities, and their actual manufacturers and Purolator was indeed made by Wix at the time. Wix is a huge OEM manufacturer so even if Bosch bought them out it does not mean Wix is still not the manufacturer and Bosch simply the marketer.
 
Gillbot said:
BITOG has some, but I cut my own open before I use them on my car. The old line of supertech was the same as the K&N but with a slightly less restrictive media. ST then switched manufacturers and now they are the equivalent of the fram sadly.

Right now, I think (at least for my car) the napa gold is the best value.
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Napa Gold is what I've put on all my cars. They're inexpensive, and they're good quality.
 
If you are going to post here in the garage then please go with current threads and not 5 year old ones...?

AT Moderator
Bartman39
 
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