Do not use under any circumstances use K&N OIL

[KEVINL]

I fowled my mass airflow sensor using the tiniest amount of k&n air filter oil.

My truck was puffing black smoke at a 70 mph cruise and since I have the mas air flow code shut off in Efi live it wasnt apparent why it was doing this.

Time to go to Autozone and get some electrical cleaner

So I learned my lesson when people say K&N is bad for our trucks they are sure telling the truth

[chris_koller]

so how are you supposed to oil an S&B filter after cleaning? use their oil instead of K&N's? or will it just do the same thing? ( i know, stock filter was fine, but i bought the S&B before i knew any better and now i need to clean it)

[KEVINL]

supposedly the S&B oil is okay nobody seems to have problems with their oil


I will do that next time if I have problems with that I will go to a dry filter

[Mike]

so how are you supposed to oil an S&B filter after cleaning? use their oil instead of K&N's? or will it just do the same thing? ( i know, stock filter was fine, but i bought the S&B before i knew any better and now i need to clean it)

I've found that K&N oil isn't the problem by itself. I've oiled my filter, and not over oiled this filter, then waited till the next day to drive. Seems this may help absorb the oil and not allow the oil to be pushed through the filter element into the air flow or seep/wick around the inner diameter of the piping. But again, depends on the amount of oil used.

[Crazy_Steve]

How long after the oil was applied did you drive the truck kevin?

I'm trying to diagnose the reason the k&n does this also, and i think ive got it.

[ripmf666]

Its any of the oils, You can not go over board on the oil and you should let it sit for awhile after oiling before installing on the truck.

[KEVINL]

How long after the oil was applied did you drive the truck kevin?

I'm trying to diagnose the reason the k&n does this also, and i think ive got it.

About 1 hr


I am not sure how long it took to get fouled though maybe 4-5 days and it just kept getting worse I had kind of attributed the weak performance from the heat out side.

It ran fine at Wot but turbo response was non existant and at lower throttle positions it didn't feel right. I knew I had a problem Monday when I could see puffs of smoke just cruising at 70. After talking to Brandon we ruled out tuning. I thought maybe I got bad fuel but wasn't sure. Then I thought the MAF might be the problem but it wasnt setting code then I remembered the MAF code is disabled.

[dmaxchris]

I tossed my K&N drop-in in the trash and got an AEM dryflow.

[KEVINL]

still smoking while cruising not sure what the problem is

[tinman22]

I just cleaned and oiled my s & b last weekend. put the filter back on and didnt drive it till the next day. still no problems. I only put enough oil on till it just turned pink again.

[Dirtbikindad393]

FYI for you guys........Amsoil carries Injen Intakes with dry filters that are 100k miles or 4 years guaranteed. Amsoil also carries replacment filters for most intakes that are dry with the same warranty including OEM repalcement drop in filters also.

[blksmok]

FYI for you guys........Amsoil carries Injen Intakes with dry filters that are 100k miles or 4 years guaranteed. Amsoil also carries replacment filters for most intakes that are dry with the same warranty including OEM repalcement drop in filters also.

How does the guarantee work? In Az, no way is a air filter going to last 100K miles. I just switched to my 3rd and I'm at 40K miles...

[Turbotug]

No kidding..

Seems like I'm cleaning my AFE every other month.):h

[hondarider552]

Just a thought kevin, your on your stock set of injectors?
I need to clean my filter..

[KEVINL]

yeah but it does not smoke at idle. And It doesn't have any of the other injector symptoms


She has to be due soon for injectors. I just gotta beg the dealer to warranty them.

[DunesRunner08]

when you clean the filter you need to wait 12 hrs for the filter to dry and then 24 hrs for the oil to absorb in the filter... but K&N oil is a different compund and really messes with electronics... but K&N's filter worth a schit... AIRAID, S&B, and Banks are the only intakes worth a damn.... all the others arent better than stock at filtering, not at getting cold air to the engine... they just allow more airflow, which lets in more dirt than stock... where as the three i mentioned filter better, allow more airflow, and allow colder air to reach the intake than a stock system would

[NeilLB7]

Does Banks and S&B make their own filters and oil? I was always under the impression that Banks used K&N materials.

I used to use AFE in my 99 Dodge Cummins. But I don't like AFE's setup for the LB7 so I'm going to try S&B.

I bought an extra filter for the Dodge. I used to swap out back and forth between them. Once a year. When I'd clean the dirty one...I'd let it dry for several days. Then I'd over oil it. After that I'd put it in a clear plastic bag and let it hang in the garage so all excess oil would drip off of it and the proper amount always remained in the filter material. It would do this on its own. Then I'd swap them out and never had any issues. And these trucks were a little picky about filter oil on sensors.

Just an idea albeit more expensive.

[Crazy_Steve]

You HAVE to let a filter that was oiled with K&N or the like sit for longer than the directions say, especially on our big filters with thick gauze and a lot of surface area.

The K&N oil spray is mixed with an alcohol solution that lowers the viscosity of the mixture and allows the oil to be applied in an aerosol spray.

The wait time after this is to allow the alcohol to evaporate, leaving behind only the stick oil solution.

If driven too quickly after oiling, or oiling when the filter is not fully dried, causes the highly evaporative alcohol (still mixed with the oil) to be sucked into the intake tube.

This vapor clings to everything in the intake, especially the sensitive MAF sensor. The alcohol evaporates and the oil is left on the MAF sensor, causing it to foul and throw a code.

[TheStepChild]

banks told me just use kn oil. and i've had no problems so far...

[Crazy_Steve]

banks told me just use kn oil. and i've had no problems so far...

They're all the same.