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Old 01-19-2005, 03:40 PM   #1
Boosto
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Join Date: Jan 2005
Vehicle:
2005 WRX
Polar White

Default panel filters?

I want ot buy a panel filter for ease of cleaning due to dusty conditions. I have had KN and noticed that oil got dirty fast when driving in dirty conditions, like after hurricanes of last year. Is the Perrin any good and is it not to oily to mess up MAF sensor coatings. Also looked at Green filters, understand perrin has thight fit. Green is porous and similar to KN but more like shirt material than medical grade cotton gause. Any suggestions most appreciated....much boost...
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Old 01-19-2005, 03:59 PM   #2
Malik
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I used a K&N filter for about a year. Got a dirty MAF and a check engine light. Have since used the stock filter. Have no experience with the Perrin. My suggestion, go with the stock filter.
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Old 01-19-2005, 04:18 PM   #3
whittleman
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The oiled filters flow better than paper WHEN DIRTY. You will either a)change your paper filter more often or 2) master the oiling proceedure (many people are successful with them...may just take practice.)
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Old 01-19-2005, 04:33 PM   #4
Boosto
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Quote:
Originally Posted by whittleman
The oiled filters flow better than paper WHEN DIRTY. You will either a)change your paper filter more often or 2) master the oiling proceedure (many people are successful with them...may just take practice.)
I agree with not over oiling any panel filters and mastering the deal, never had the MAF issue on my 99 Si civic NA b16 engine, with KN, the B16 draws less than a turbo EJ motor. I like the KN dont get me wrong but the other enthusiast gentleman that posted relayed that his MAF got dirty and he got CELed. after a while with dirty oil. I think the gause type filters that are thinner in construction than foam filters, bleed the oil more than foam....I guesstimate that foam could hold more saturation of the filter oil with less bleeding. I hear good things on the Green product but again it is thin cotton based media.
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Old 01-19-2005, 06:59 PM   #5
rbcsaver
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I had the oil in the MAF of my Porsche 911. This however, was my fault, I believe, for using too much oil and not letting the propellant evaporate before putting the filter in use. There has been much discussion on some of the P-car lists about a freshly cleaned and oiled filter actually allowing more dirt to pass to the motor, than a stock paper or well used K&N type filter. It seems that too frequent cleaning, over or inappropriate oiling is no good.
regards,
Steve
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Old 01-19-2005, 09:01 PM   #6
Hayes
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The OEM filter in my Forester is oiled as was my Purolator replacemrnt. It is SO improtaint that the correct amount of oil and that is is evenly distributed on these aftermarket miracle filters. I recomend the OEM or Purolator unless your racing and really need the extra 2 HP at the tachometers redline.
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Old 01-20-2005, 01:57 PM   #7
Malik
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Just to clarify, the K&N I was using was oiled by the factory, blotted by me, let sit for a week, blotted and then installed. The dirty MAF was my doing - probably should have let the filter sit for a longer time.

My previous vehicle had a K&N for nearly 120,000 miles, changed every 30,000 miles (inspected at every second oil change) with no issues. In that car, it made a difference; in the WRX it doesn't, so I switched to the stock filter.

The stock filter does a good job even on my frequent dirt road trips. Having the stock intake helps. Hence the suggestion.
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Old 01-20-2005, 09:22 PM   #8
drdome99
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Green Panel Filter = best.

http://www.greenfilters.com/
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Old 01-21-2005, 01:17 AM   #9
RogersWRX
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Default Oil is bad...

Buy cheap filters - Purolator or Fram, and replace them often - they flow great when they're new - as good as any $40 - $90 "performance" filter, they get clogged easier, then flow like crap. So forget the oil, throw them away and buy a new one.... easy and cheap.
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