K&Ns don't filter worth a crap. I don't care what their literature says,if you can hold the filter up to a light source and see THROUGH the filter it can't physically filter very well.

I bought into their hype and installed one on my '98 Z-71. I had numerous UOAs as a history of how well the engine was protected with a regular paper filter. After I installed the K&N the Silicon level went sky high. After a couple more UOAs came back with the same high levels,the K&N went in the garbage.

A couple more UOAs with the Napa Golds I'd been using prior to the K&N and the Silicon levels went right back down to where they'd always been.

 

call it a K&N bashfest, but lots of people who have run them on turbo diesels have found dust/dirt in their intakes. the inside of my intake tube has never had any dust/dirt in it with my AEM filter, and i check it at every filter cleaning.

 

Fixed it for you...

 

thanx.....

 

is your AEM filter oil type or dry?

what style did you get? stock filter size or round universal turbo version? any idea part #?

 

All K&N bashing and nobody has commented on the positive for antifreeze. Silicone could also be from the new reman engine as well and not just from the K&N. Fresh gasket sealers.

 

been a long time supporter of K&N and have never done an oil test. so silicon content while important, mean little to nothing to me.

I too was skeptical about all the negative feedback K&N was getting in general. but after seeing repeated posts about this. I decided to check my intake for cleanliness.

whereas before K&N my intake was completely clean. now after 15k miles with K&N in place. my turbo vanes is loaded with dirt.

don't need any further proof that dirt gets by K&N.

all you K&N cummins users... best to check for dirt inside your intake by taking off the turbo inlet hose for inspection.

 

i have the Brute Force CAI with the dry filter. the part # for the 4"x9" dry, cone style filter is 21-2059DK. i think the part # for the CAI is different now, since they now have a HD CAI for diesels.

 

Hold the filter up to the light and look through it, if you can see pinpoints of light shining through, you also get pinpoints of dirt going right through.

 

ok.. thanks .. that's the oval filter with 4in round inlet.
where did you find the 4.3in tube needed to connect to CTD?

 

i have the entire AEM intake, which came with the tube, heat shield, and filter.

 

the entire intake kit w/filter is $300+ ....
http://www.aempower.com/ViewProduct.aspx?ProductID=192

what I had in mind was the filter only, then finding a 6in x 4.3in tube to connect to stock inlet.

so I would end up with a setup like BHAF, only using a cleanable AEM filter. maybe I'm better off going with a BHAF and be done.

 

Yeah I was curious about that comment. I am not running low on antifreeze or anything. I have not had to add any.

 

I honestly think your oil report is invalid.
The sample came from a new motor with parts that were involved in a catastrophic failure, coated with who knows what.
The oil sample was pulled by somebody who does oil changes for a living, and probably doesn't think clearly, thus probably collecting the oil sample after being reminded for the third time, panicking and pulling it from the collection pan that could have been used for antifreeze 3 hrs prior.
Like I said prior, mention K&N and oil on this forum, and you see a reflex gag!!

I don't test my oil, simply because I buy a new truck every other year.
If you want to see an oil report on a bone stocker with a K&N filter, I'll volunteer the oil, you guys pay for the report.

 

Aside from what Dan K said, you have major bottom end wear, i.e piston, rings, and cylinder bore. Two things are causing this, dirt from intake or antifreeze in your oil. Like I said before, silicon could also be from the new reman motor and sealants that were used, which you might see later on after a oil and air filter change.

If Dank is right then another sample needs to taken correctly to see the true story.