Air Filter?????

[JBoone]

I need a air filter but don"t have the big bucks for a K & N round type filter. I have a amsoil square filter in the truck now. It came with the truck and at this point is very dirty. I could clean it and put the amsoil oil back on it but don't have a clue on how much you put on the filter. I don't know how old the filter is. I believe the guy who owened the truck before me added to much oil after cleaning because it's oily in the bottm of the filter canister and the filter is 60% stopped up. Any suggestions? Thanks!

 

[Mark_Kendrick]

get a BHAF for $40. . fleetguard AH19037. Do a search, there's lots out there about it.



You'll see better spool up and a little better mpg (<>. 5mpg) over a clogged stock style filter.



besides it looks cool under the hood

 

[LarryB]

Seems I remember a few posts about guys removing their RE0880 K&Ns because they didn't like them. Maybe someone has one they will sell you for cheap. OR a BHAF seems like good bet too from what I have read here.

 

[LSMITH]

Put a Fleetguard stock filter in it. If you are not sucking the filterminder down at least halfway with a new stock element there is no reason to put anything else in there besides that they do look cool. Yes I have tried other filters, and no my turbo does not spool up any faster with anything else, it is just noisy with the freeflow stuff. Under $20 for a stock filter that is all you need is a lot better than an expensive filter you don't need IMO.

 

[chuck3]

Stock filters is all I use, the foam gets dirty I take it off and still have a clean filter for a while longer.

 

[ccoleman]

I tossed the K&N that came on my used '94 in the trash! The turbo had a film of gritty oil in it. This country is known for the pumice dust, a powdered volcanic dust that is fine as baby powder. Common sense tells me that the easier the air flows through, the less filtering is being accomplished. If I lived in the city on asphalt, the K&N might work but with a five mile long dirt driveway, a disposable stock Fleetguard is the only thing I feel comfortable with... ... ... ... ... .

 

[Cummins Corvette]

K&N=trash. The only one I have used let very fine dust in. And it was DAMN SURE properly oiled. I just use paper now and I am .



My $0. 02

 

[GSchlegel]

I know everyone has their own opinions... Here is mine - a properly oiled K&N doesn't send oil or dust downstream. My reasons are subjective, but I have over 125,000 miles with the K&N filter in the stock box and over 25,000 miles with the 0880. Last month I tweeked my plate, so I took the intake horn(?) of and checked it. It was dry and not a sign of oil or dust. Just a little grey that always comes from dry cast alum. A few months earlier I check the silencer ring on the turbo and it is so dry it is starting to corrode! This truck has been all over Nebraska, including through a lot of dust storms (drought + farmers working their fields), smoke (prairey fires), etc. At 375hp, 39psi boost, she ain't the hottest truch around, but she ain't been babied either.



Like I said, everyone has a right to their own opinions, but statements like "K&N=trash" are incorrect. If you follow the instructions and oil it correctly and seal it correctly, you won't have any problems.



Gene

 

[The Sequel]

For those of you using the stock setup, does your filter minder work for you or do you just change it at set intervals? My filter minder has sucked down to half but then would not return there after I reset it. I'm at 33,000 miles on the stock filter and am wondering if I should change it anyway. It looks dirty but not horrible. Over 8,000 miles of the 33,000 is towing a 7,000# travel trailer. What do you think?

 

[Fireman Dave]

Sequel,



Mine is stock. I've never seen the Minder move at all. I replaced the filter at about 22k (16 months), because it looked dirty to me. Not sure if that was necessary, but it didn't hurt. I also removed the airbox boot at that time. Sounds sweeter now!



Dave

 

[Mark_Kendrick]

Another thread w/similar interests

https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=31887



This thread is about the BHAF and the HX-40 but touches the issues some have here.

 

[LSMITH]

The filterminder will move when the filter gets dirty. Put a piece of heavy cardboard with about a 2" hole in it over the hole in the airbox where the boot goes into the fender and rev it up, the filterminder will move proving that it works. If you don't cut a hole in the cardboard you could collapse the airbox or mangle the filter.



In my experience once the filterminder starts moving down it will indicate a full restriction within a few thousand miles. Mine never moved and then within a month it said to replace the filter, that was about 45K miles on the filter. The one before that lasted about 30K.



Change it when the filterminder says to IMO.

 

[Mark_Kendrick]

Be careful when cleaning and reinstalling the stock air filters. . I noticed where mine had been leaking around the filter a bit. the stock box is not hard to seal but is easy not to seal properly.



After reinstalling the filter my minder never moved and when I went to look at the filter it was filthy, thats the day I was installling the BHAF. I saw no signs of the filter leaking that time and I was looking very closely.



I just have very little faith in the factory air box. . its too easy to mess up the seal and lacks the flow needed for a mildly turned up truck.



I don't think the air box has the over engineered margins that many other components on our trucks do.