Air intake (K&N) bad for a car?
#1
Air intake (K&N) bad for a car?
Hey guys, i wasn't able to find out if this was covered or not.
I read this article on the amount of dirt let in by different air filters and K&N and Amsoil were the 2 worst. Is it plausible? I mean in the end it isn't even really worth it to get an aftermarket intake system if it's going to let in all this dirt. Im guessing it could be rather dangerous to our engines. What are your thoughts?
http://s112.photobucket.com/albums/n...ilter%20Tests/
I read this article on the amount of dirt let in by different air filters and K&N and Amsoil were the 2 worst. Is it plausible? I mean in the end it isn't even really worth it to get an aftermarket intake system if it's going to let in all this dirt. Im guessing it could be rather dangerous to our engines. What are your thoughts?
http://s112.photobucket.com/albums/n...ilter%20Tests/
#2
not the dirt that messes things up, its those that dont know how to clean/oil the filters that causes problems. known to cause issues with MAF from my experience. I switched back to good'ol paper filter until I get my intake and even then Im getting a dry filter - APEXi.
you will get mixed reactions on this one.
you will get mixed reactions on this one.
#3
I have ran a k&n rechargable filter on my Max for 3+yrs and I clean and re-oil it every 6 months or so and I have no complaints at all, I always check the inside of the filter and touch the throttle body with a rag right before cleaning it and I know its not letting in dirt cause I dont see any.
#5
I ran a K&N on my B13 for over 208K miles. No problems. The engine ran perfectly, no compression loss, no oil consumption. I'd still be driving it, but a very nice lady totaled it for me....it was a very sad day. Now I'm a happy Maxima owner.
My wife's Maxima has had a K&N for over a year now (15k miles) with now issues. I've had a K&N in my Max for just a couple of months and no problems yet.
My wife's Maxima has had a K&N for over a year now (15k miles) with now issues. I've had a K&N in my Max for just a couple of months and no problems yet.
#7
Originally Posted by vq356sp
I have ran a k&n rechargable filter on my Max for 3+yrs and I clean and re-oil it every 6 months or so and I have no complaints at all, I always check the inside of the filter and touch the throttle body with a rag right before cleaning it and I know its not letting in dirt cause I dont see any.
The TB might be clean, but what about the rest of the air going into the engine?
#8
if you use a K&N properly it will do nothing to your MAF
proof http://www.knfilters.com/MAF/massair.htm
proof http://www.knfilters.com/MAF/massair.htm
#9
Originally Posted by delguiner
ya but how do you know that it's not letting in a lot of dirt into the engine?
The TB might be clean, but what about the rest of the air going into the engine?
The TB might be clean, but what about the rest of the air going into the engine?
My car acts/runs fine and like I said I have been using it since I got my car
#10
Originally Posted by soonerfan
if you use a K&N properly it will do nothing to your MAF
proof http://www.knfilters.com/MAF/massair.htm
proof http://www.knfilters.com/MAF/massair.htm
I'm not saying you're wrong, but is K&N really the source you want to go to for information like this? What do you think they're going to say.
#11
Originally Posted by MacGarnicle
I'm not saying you're wrong, but is K&N really the source you want to go to for information like this? What do you think they're going to say.
#14
Originally Posted by vq356sp
Just giving my input on what I beleive/think I do not feel like tearing apart my engine just to look for some dirt........
My car acts/runs fine and like I said I have been using it since I got my car
My car acts/runs fine and like I said I have been using it since I got my car
#15
I agree with magdocjr that as long as you oil the filter properly, you should have no problems. I ran a foam filter supplied with my weapon-r intake and screwed two MAF sensors. I switched to AEM dryflow and have had no problems. If you operate in really dirty conditions, extra precautions should be taken on when you clean the filter.
#17
2002 maxima se
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Join Date: Apr 2006
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apexi is little expensive but is top of the line. but if you buying it from berk tech and cant afford the apexi. they also got AEM filter which is dry and cleanable (better than k&n) and cost around $30 where apexi cost $75 but if you bargain with bryan he can let it go for $70 i think.
#18
Guys, he's not asking if it will ruin his MAF, he's asking if it lets more dirt in.
I have seen a few independent tests done that conclude that a K&N definitely lets more dirt in than most other air filters. I have also seen several UOAs on BITOG with elevated silicon levels that can most directly be attributed to the use of a K&N filter.
Does K&N let more dirt in? I would say yes. Will this damage your engine? Tough to say - probably not if the oil is doing it's job. But it's certainly not "good" for the engine.
I used to run a K&N in my max until evidence convinced me that maybe it isn't the best idea. IMO, the very tiny benefits of a little extra air are not worth the risk of more dirt as well. I will say that with the K&N in, my car definitely "felt" more responsive and fuel mileage also seemed to be marginally better.
I have seen a few independent tests done that conclude that a K&N definitely lets more dirt in than most other air filters. I have also seen several UOAs on BITOG with elevated silicon levels that can most directly be attributed to the use of a K&N filter.
Does K&N let more dirt in? I would say yes. Will this damage your engine? Tough to say - probably not if the oil is doing it's job. But it's certainly not "good" for the engine.
I used to run a K&N in my max until evidence convinced me that maybe it isn't the best idea. IMO, the very tiny benefits of a little extra air are not worth the risk of more dirt as well. I will say that with the K&N in, my car definitely "felt" more responsive and fuel mileage also seemed to be marginally better.
#19
the reason most people make that assumption is they feel any high flow filter allows more air and "must in turn allow other things". i agree with everyone else that as long as its maintain properly a k&n is the way to go.
i dont have a k&n, but i'm planning on getting one today.
i dont have a k&n, but i'm planning on getting one today.
#20
I have been using one on my '95 for 154k miles, as well as on my '03 for 40k, no problems.
Engine Oil looks clean on both vehicles, no adverse problems.
Would I buy another
Should you
Engine Oil looks clean on both vehicles, no adverse problems.
Would I buy another
Should you
#21
Originally Posted by PhillyB
the reason most people make that assumption is they feel any high flow filter allows more air and "must in turn allow other things".
Again, I'm not saying that a K&N will cause any appreciable engine damage when compared to another filter, but it DOES let more dirt through.
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