Engine Air Filter Replacement

neto1978 · December 4, 2008

when is the time to replace the air filter ,under asphalt only condition...

tks

jrrod2004 · December 4, 2008

I would say 12,000 miles (19312.128 KM)

Zembonez · December 4, 2008

Years ago when I used OEM type paper filters I replaced them yearly (usually about 10,000 miles)

Now I use K&N filters in everything. Have been fior years and love them.

zaac · December 4, 2008

It's funny how everyone can have such different opinions. If I'm looking at buying a vehicle and it has a K&N on it that is a big negative for me. I know they flow air better but I'd rather have a filter that catches dirt and the K&N doesn't do that near as well as a good paper filter. Sure, if you don`t keep your vehicles for a long time it don`t matter cause the next guy will have to deal with it. I, on the other hand, usually end up keeping my vehicles forever so the more dirt I keep out the better. How much power does a K&N really add anyway. If someone snuck one on my truck without me knowing I probably couldn't tell the difference anyway. Imo, keep the good 'ol Delco paper filter and your engine will be better off.

Zembonez · December 4, 2008

It's funny how everyone can have such different opinions. If I'm looking at buying a vehicle and it has a K&N on it that is a big negative for me. I know they flow air better but I'd rather have a filter that catches dirt and the K&N doesn't do that near as well as a good paper filter. Sure, if you don`t keep your vehicles for a long time it don`t matter cause the next guy will have to deal with it. I, on the other hand, usually end up keeping my vehicles forever so the more dirt I keep out the better. How much power does a K&N really add anyway. If someone snuck one on my truck without me knowing I probably couldn't tell the difference anyway. Imo, keep the good 'ol Delco paper filter and your engine will be better off.

Define "Better Off".

"better off" is like smoke in the wind. The so called "extra" dirt a K&N filter will let in wouldn't cause engine harm in 500.000 miles. Sure, extra flow will mean extra particulates getting through, but we are talking tiny tiny particles here. Hundreds of thousands of miles running K&N filters in my entire family and and my company we have never experienced an engine issue of any kind... not even increased oil consumption.

My current company car is a Ford Explorer that I have put 145,000 miles on. It has had a K&N filter in it (the same one) since new. I get the oil changes every 5000 miles and it never uses a drop. If a K&N is so evil, tell me why it isn't using several quarts of oil between changes with this many miles on it? It's because all of the hooey about K&N filters causing grave harm are total bullshit... that's why.

This argument is nothing but splitting hairs and there are people that will swear th be loyal to either side... NONE of it is based on anything but old wives tales.

Either way won't cause harm to your vehicle. Maintenance is the key.

For the record... I am not trying to be a smart ass here... just offering up another opinion based on many hundreds of thousands of miles driven.

jhm · December 4, 2008

I would say 12,000 miles (19312.128 KM)

My truck has the indicator on the air filter inlet. At first I didn't trust it because after about 10k it was still in the green. I bought a new filter and when I took the old one out, it still looked great. The filters are designed for long life. If you dont have the indicator, go by the manual. BTW, the indicator is very sensitive to resistance, I checked.

blankey · December 4, 2008

I just replaced the filter a month ago with about 24k and the sensor was still in the green and the filter didn't look very dirty at all. I was suprised how clean it still was but changed it anyway. I even drive in some dusty conditions on the way to our ATV riding area. My mother's charger on the other hand the filter has been replaced once already and it's only has around 15k and it was almost completely black.

VMax2007 · December 4, 2008

It's funny how everyone can have such different opinions. If I'm looking at buying a vehicle and it has a K&N on it that is a big negative for me. I know they flow air better but I'd rather have a filter that catches dirt and the K&N doesn't do that near as well as a good paper filter. Sure, if you don`t keep your vehicles for a long time it don`t matter cause the next guy will have to deal with it. I, on the other hand, usually end up keeping my vehicles forever so the more dirt I keep out the better. How much power does a K&N really add anyway. If someone snuck one on my truck without me knowing I probably couldn't tell the difference anyway. Imo, keep the good 'ol Delco paper filter and your engine will be better off.

Define "Better Off".

"better off" is like smoke in the wind. The so called "extra" dirt a K&N filter will let in wouldn't cause engine harm in 500.000 miles. Sure, extra flow will mean extra particulates getting through, but we are talking tiny tiny particles here. Hundreds of thousands of miles running K&N filters in my entire family and and my company we have never experienced an engine issue of any kind... not even increased oil consumption.

My current company car is a Ford Explorer that I have put 145,000 miles on. It has had a K&N filter in it (the same one) since new. I get the oil changes every 5000 miles and it never uses a drop. If a K&N is so evil, tell me why it isn't using several quarts of oil between changes with this many miles on it? It's because all of the hooey about K&N filters causing grave harm are total bullshit... that's why.

This argument is nothing but splitting hairs and there are people that will swear th be loyal to either side... NONE of it is based on anything but old wives tales.

Either way won't cause harm to your vehicle. Maintenance is the key.

For the record... I am not trying to be a smart ass here... just offering up another opinion based on many hundreds of thousands of miles driven.

Shut up Clown...K&N sucks!

(FTR, I had one in my 2000 for most of it's 90K miles and I never had any issues, however, I noticed ZERO difference in either power or fuel mileage).

tobias · December 4, 2008

It's funny how everyone can have such different opinions. If I'm looking at buying a vehicle and it has a K&N on it that is a big negative for me. I know they flow air better but I'd rather have a filter that catches dirt and the K&N doesn't do that near as well as a good paper filter. Sure, if you don`t keep your vehicles for a long time it don`t matter cause the next guy will have to deal with it. I, on the other hand, usually end up keeping my vehicles forever so the more dirt I keep out the better. How much power does a K&N really add anyway. If someone snuck one on my truck without me knowing I probably couldn't tell the difference anyway. Imo, keep the good 'ol Delco paper filter and your engine will be better off.

Define "Better Off".

"better off" is like smoke in the wind. The so called "extra" dirt a K&N filter will let in wouldn't cause engine harm in 500.000 miles. Sure, extra flow will mean extra particulates getting through, but we are talking tiny tiny particles here. Hundreds of thousands of miles running K&N filters in my entire family and and my company we have never experienced an engine issue of any kind... not even increased oil consumption.

My current company car is a Ford Explorer that I have put 145,000 miles on. It has had a K&N filter in it (the same one) since new. I get the oil changes every 5000 miles and it never uses a drop. If a K&N is so evil, tell me why it isn't using several quarts of oil between changes with this many miles on it? It's because all of the hooey about K&N filters causing grave harm are total bullshit... that's why.

This argument is nothing but splitting hairs and there are people that will swear th be loyal to either side... NONE of it is based on anything but old wives tales.

Either way won't cause harm to your vehicle. Maintenance is the key.

For the record... I am not trying to be a smart ass here... just offering up another opinion based on many hundreds of thousands of miles driven.

+1, Jim.

I have used K&N's in every vehicle I have owned for the past 16 years and not had one major problem attributable to them.

zaac · December 5, 2008

Most of my driving is off road in dry dusty conditions and always at slow speed so the wind has me driving in a constant cloud of dust. In this condition why would I want a filter that allows more dirt to get into the engine? For the extra 1-4 hp, no thanks. If I was strictly highway miles I would consider a k&n but only for the cost savings (it's hard enough to make a living). I'm happy that they are working good for you and the others that like them. The lowly Delco papers are working good for me too. Jmo, I ain't no engineer, scientist, or whoever designs these things and I don't feel like doing any more research on it.

dkjbama · December 5, 2008

It's funny how everyone can have such different opinions. If I'm looking at buying a vehicle and it has a K&N on it that is a big negative for me. I know they flow air better but I'd rather have a filter that catches dirt and the K&N doesn't do that near as well as a good paper filter. Sure, if you don`t keep your vehicles for a long time it don`t matter cause the next guy will have to deal with it. I, on the other hand, usually end up keeping my vehicles forever so the more dirt I keep out the better. How much power does a K&N really add anyway. If someone snuck one on my truck without me knowing I probably couldn't tell the difference anyway. Imo, keep the good 'ol Delco paper filter and your engine will be better off.

+1

A K&N is great till the oil dries out. If the oil dries out and you forget to clean and re-oil for whatever reason, you may as well be running with no filter at all. Sorta like a reusable jimmiehat that biodegrades in warm moist places.

Zembonez · December 5, 2008

I call total BS on this. I pull my K&N once a year to have a look at, wash, re-oil and reinstall it. It always looks exactly like it did when I installed it except for a little trapped dust. There are so many fabricated old wives tales about these filters... yet there are exactly ZERO instances of them ever causing anybody any damage.

Go to any off road or desert race and look at the machinery. They spend hundreds of thousands of dollars on their race engines and every one of them will be running a K&N or similar oiled filter.

This is a ridiculous argument.

There will always be the those that think a dry paper element is somehow magical... but it isn't based on science.

VMax2007 · December 5, 2008

Anybody know if I can use a K&N in my hot tub?

GARB55 · December 5, 2008

It's funny how everyone can have such different opinions. If I'm looking at buying a vehicle and it has a K&N on it that is a big negative for me. I know they flow air better but I'd rather have a filter that catches dirt and the K&N doesn't do that near as well as a good paper filter. Sure, if you don`t keep your vehicles for a long time it don`t matter cause the next guy will have to deal with it. I, on the other hand, usually end up keeping my vehicles forever so the more dirt I keep out the better. How much power does a K&N really add anyway. If someone snuck one on my truck without me knowing I probably couldn't tell the difference anyway. Imo, keep the good 'ol Delco paper filter and your engine will be better off.

Define "Better Off".

"better off" is like smoke in the wind. The so called "extra" dirt a K&N filter will let in wouldn't cause engine harm in 500.000 miles. Sure, extra flow will mean extra particulates getting through, but we are talking tiny tiny particles here. Hundreds of thousands of miles running K&N filters in my entire family and and my company we have never experienced an engine issue of any kind... not even increased oil consumption.

My current company car is a Ford Explorer that I have put 145,000 miles on. It has had a K&N filter in it (the same one) since new. I get the oil changes every 5000 miles and it never uses a drop. If a K&N is so evil, tell me why it isn't using several quarts of oil between changes with this many miles on it? It's because all of the hooey about K&N filters causing grave harm are total bullshit... that's why.

This argument is nothing but splitting hairs and there are people that will swear th be loyal to either side... NONE of it is based on anything but old wives tales.

Either way won't cause harm to your vehicle. Maintenance is the key.

For the record... I am not trying to be a smart ass here... just offering up another opinion based on many hundreds of thousands of miles driven.

+1, Jim.

I have used K&N's in every vehicle I have owned for the past 16 years and not had one major problem attributable to them.

The only problem I have is that I don't have to spend money on a new paper one evry filter change! Oh that's a bennfit not a problem!

VMax2007 · December 5, 2008

Neither do I

I have am AEM "Dry-Flow" reusable dry filter. Cost me $50 and never needs re-oiling.

I agree that K&N's do not cause any damage IF OILED PROPERLY and at the proper time. I had one in my 2000 for 7 years, re-oiled it once and even though it never caused any issues, it didn't do a bit of good either, either in HP or mileage.

I don't see the point, so I won't waste my money on one again.