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Old 05-03-2001, 07:56 PM   #1
subymamma
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Question Does having an air intake necessitate more frequent oil changes?

Thought I may have seen something about this before somewhere but can't recall if this is exactly what was said--in other words, that your oil gets dirtier faster with an air intake (Ganz to be exact).
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Old 05-03-2001, 08:11 PM   #2
jlyttle
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I would think that the Ganz would be the same if not better. After all, the air is drawn from the inner fender instead of from just after the grill under the hood. Anyone else have an opinion?
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Old 05-03-2001, 08:29 PM   #3
inpreza kid
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just done my 2nd oil change and switched to synthetic oil. i have a jc sports intake and i did notice that the oil was damm black when i changed it. not sure if it was from the intake but it was probably from me running the engine harder to hear the intake.
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Old 05-03-2001, 10:43 PM   #4
silverSurfer
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I doubt it's the intake running the engine harder..it's your brain telling your foot to run the engine harder cause you're having so much more fun !!!

But also don't forget to do the ECU reset after the CAI mod.

-chrisC
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Old 05-04-2001, 01:32 AM   #5
gavin
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You will only have to change the oil more often if the intake you install has inferior filtration.

A fair amount of any contaminants that make it through the air filter will end up in your oil. This is the trade off you make with a free-flow filter. Most come from a racing design, which doesn't worry much about filtration because the engine is rebuilt well before it would become an issue. If you're running an aftermarket intake, or even filter, don't cheap out on your oil filter .
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Old 05-04-2001, 06:24 AM   #6
Buellboy
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IMO, the oil is darker because of the rich condition created by the CAI, exhaust, etc.

I change my oil every 2000 - 2500 and it is usually fairly dark.
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Old 05-04-2001, 09:14 AM   #7
JJTheSubeDriver
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I have a Ganzflow and my oil gets black about every 200-2500 miles. My filter is a K and N. I am thing of trying amsoil or a pipercross because they are foam and should maybe filter better but have a more restricted flow.

JJ
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Old 05-04-2001, 09:34 AM   #8
bluesubie
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The oil in my wife's OB with a K&N gets darker faster than my OBS with an Amsoil. And I drive harder, and make more frequent short trips. Both cars have drop-in panel filters.
Dennis
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Old 05-04-2001, 11:04 AM   #9
Albert
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Exactly, I willing to say the Amsoil filters dust better than any cotton filter. Also my intake tube has no dust like I have noticed with K&N.

Albert
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Old 05-04-2001, 12:08 PM   #10
gavin
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Your air filter doesn't have anything to do with your oil turning black. Oil turns black from the creation of carbon in the combustion chamber. Some of this will wind up in your oil, just like anything that slips past your air-filter. If your oil is coming out really black, then you're probably running really rich.

A smaller micron filtering oil-filter would remove much of the carbon, as well as other contaminants.

The crux of the biscuit is really your oil filter. If your oil filter is really good, anything that makes it into the engine is only going to cycle through once and not really do any damage.
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Old 05-05-2001, 01:32 AM   #11
bluesubie
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Gavin - I made a similar post a while ago here . Of course the opinions varied there as well. My wife and I use the same exact brand fuel, oil filter but different air filters.
I don't know if this is just their marketing hype, but Amsoil says that air filter quality does affect oil.
From: http://www.amsoil.com/lit/g385.pdf
"...road dust and airborne grit drawn into the engine through the air intake ... these particles are carried by the oil into the clearances between bearings and other moving parts ... "
I'm no techie, but it does make sense in addition to the carbon.

Dennis
edit: I re-read your above post. I think you're saying dirt can get by the filter, it just doesn't necessarily affect the oil color.



[This message has been edited by bluesubie (edited May 05, 2001).]
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Old 05-08-2001, 12:51 PM   #12
gavin
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Yes, exactly. Particles that get past your air filter will end up in your oil, but the oil turns black from the carbon generated during combustion, not from contamination.
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