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Old 04-18-2012, 08:47 AM   #1
Ivanbarker
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Default OEM Engine Air Intake Filter

Hello,

I am doing some regular maintenance on my 06 Impreza 2.5i. Tonight I am going to try changing the air intake filter (I have never done this before).

I purchased this filter:
http://www.ebay.ca/itm/230760860859?...#ht_646wt_1392

Do I need to do anything, like oil the filter (similar to the K&N reusable filter), add some sealant, or is it as simple as just pulling out the old one and popping in the new one?

Thanks!
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Old 04-18-2012, 08:57 AM   #2
bassman12350
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If the filter you purchased comes pre oiled, you don't want to add oil to it. Be careful with any filter like the K&N to avoid over oiling it. You will damage the mass airflow sensor.

The filter should just "pop" in - in place of the OEM filter, provided your new one is an exact replacement.

As a rule of thumb, I always suggest buying a good quality filter and stay away from ones I don't know about - you don't want microscopic dirt particles slowly damaging your engine, IMHO.
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Old 04-18-2012, 09:40 AM   #3
Ivanbarker
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Thanks for the reply. How do I know if this filter I got from ebay is pre-oiled?
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Old 04-18-2012, 10:05 AM   #4
EdHilario
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If there are instructions included it should tell you to oil it before installation otherwise they typically come pre-applied. Only needs to be oiled again when you clean it. Even then, I don't recommend using the oil.
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Old 04-18-2012, 10:16 AM   #5
Ivanbarker
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No instructions came with it. I emailed the seller, waiting on a reply right now. However, can I tell it's pre-oiled by colour or anything?

I don't think it's a reusable filter, but can I clean the OEM filters?

Why don't you recommend using the oil? Just because you can over oil?
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Old 04-18-2012, 10:24 AM   #6
CRAZYHAWK
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I think this filter is run dry. Replace it with another when it gets dirty.
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Old 04-18-2012, 10:46 AM   #7
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You'll be able to feel a slightly oily film on your fingers when you touch the face of the air cleaner element.
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Old 04-18-2012, 10:53 AM   #8
Ivanbarker
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Great, thanks a ton guys. Any problems with a "dry" air filter? What is the point of the oil that is across some air filters?

Looks like next time I will be buying a different air filter, any recommendations? Or should I just go to the dealer and get one from them (instead of ebay)?
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Old 04-18-2012, 11:52 AM   #9
doa
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Quote:
Originally Posted by Ivanbarker View Post
Great, thanks a ton guys. Any problems with a "dry" air filter? What is the point of the oil that is across some air filters?

Looks like next time I will be buying a different air filter, any recommendations? Or should I just go to the dealer and get one from them (instead of ebay)?
I would get one from the dealer. You might as well do it right once instead of cheaping out on a filter and having it cause you more problems down the road.
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Old 04-18-2012, 09:41 PM   #10
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just put the bloody filter in and be done with it

jesus....i have never seen such insanity here

wtf....its a god damned air filter

sit the bloody thing on a piece of newspaper and if it BLEEDS any oil on it....its oiled

if not...it isnt


THIS is ridiculous....in the extreme
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Old 04-19-2012, 12:52 AM   #11
bassman12350
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Hey let's give the poor guy a break. Sounds like he's never made an online purchase of an air filter before. I don't blame him for at least wanting to make an educated decision. That's what I thought this forum was for....
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Old 04-19-2012, 09:55 AM   #12
Ivanbarker
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Quote:
Originally Posted by Uncle Scotty View Post
just put the bloody filter in and be done with it

jesus....i have never seen such insanity here

wtf....its a god damned air filter

sit the bloody thing on a piece of newspaper and if it BLEEDS any oil on it....its oiled

if not...it isnt


THIS is ridiculous....in the extreme
Sorry, I am a noob when it comes to this (or anything when it comes to cars). I have never tried to do anything on a car before. I just want to make sure I don't make the engine explode or anything and screwing up my new 10000 dollar purchase.

I didn't realize there was different qualities of filters, oiled vs not, cloth vs paper. I'm trying to educate myself (what are the advantages of the different types) so I can make informed decisions, and keep my car running as it should.

You didn't have to read the thread.

Anyways, I popped in the new filter last night, and it was super easy. I'll leave that ebay filter in there for now until I have a chance to pick up one from the dealer. Thank you all for your help.
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Old 04-19-2012, 10:35 AM   #13
bassman12350
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You should not have to apologize for asking questions. It's unfortunate that sometimes acerbic comments take over the generally very helpful tone of this forum.

Please feel free to ask more questions or comment as you feel led.
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Old 04-19-2012, 11:03 AM   #14
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^Ditto. Some folks fail to realise that even after reading forum posts, not everyone is still fully clear about a given topic.

Ivanbarker, yes consider using the filter from the dealer next time. You'd have less worry I'd think. This filter is a non-oiled filter.


The potential downside of filters that are "oiled" is that sometime that oil (if there's too much on the filter) can be deposited on stuff like your airflow sensor just downstream of the filter. That isn't a good thing.

Oiled filters use a different type of filter media to normal "non-oiled" air filters. The oiled filter NEED to be properly oiled for them to work properly. Oiled air filters can be cleaned and reused.

Regular filters (non oiled) are just drop in, use, and change when they get dirty in most cases. Some can be cleaned/reused, but most cannot be.

For the price, the original / dealership air filter is a good deal IMHO.
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Old 04-19-2012, 12:53 PM   #15
Ivanbarker
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Quote:
Originally Posted by Omega_2nr View Post
The potential downside of filters that are "oiled" is that sometime that oil (if there's too much on the filter) can be deposited on stuff like your airflow sensor just downstream of the filter. That isn't a good thing.

Oiled filters use a different type of filter media to normal "non-oiled" air filters. The oiled filter NEED to be properly oiled for them to work properly. Oiled air filters can be cleaned and reused.

Regular filters (non oiled) are just drop in, use, and change when they get dirty in most cases. Some can be cleaned/reused, but most cannot be.

For the price, the original / dealership air filter is a good deal IMHO.
That's great, thank you! Does the oil in the filters trap particles (make them stick) more efficiently?
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Old 04-24-2012, 10:51 AM   #16
Omega_2nr
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Well that's how the oiled filters work - period. The actual media in those filters is very thin, so it can't really trap stuff on its own without that oil medium.

If you're wondering if it filters more than a stock filter paper - probably not. There was a filter test floating around either on here or the interwebz in general....showing that a stock-type paper filter filtered noticeably better than the "free flow" oiled filters.

When it comes to a drop-in replacement filter, like I said, the original filter should be the best option for the non-modification/tech savvy.

Just inspect periodically, and replace when needed. Simple, and no worries about oiling, cleaning and that sort of thing.
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Old 04-24-2012, 02:27 PM   #17
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Read the post titled Intake FAQ. It has detailed TESTING of filtration media with proof as to what is best. If you want to research, then you are best served by reading the sticky threads THEN posting your question PRIOR TO purchasing. Research-->Purchase....not the other way around.
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Old 04-24-2012, 05:35 PM   #18
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"Research -> Purchase"

Best advice ever.
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Old 04-28-2012, 09:25 AM   #19
gnarkill92
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ive been running a factory filter on my car the entire time ive owned it. i need something with a little more floww
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Old 04-28-2012, 10:23 AM   #20
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More flow nets 0HP, 0TQ, and 100% more dirt ingestion. Not seeing logic here.
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Old 04-29-2012, 07:52 AM   #21
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Might as well remove the filter and see what happens lol
Remember the keyword here is "filter"
You don't wanna defeat the purpose of that word.
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