SRTSammy

I have read that before, but forgot where to look for it.

Thanks Tom for bringing that to light!!!

__________________


Scott

Bigredmariner

BooYaw, good info Tom.

1analguy

The problem arises when you have to pay to take the dealership to court in order to force their compliance...

As far as oiled-fabric filters in general, they do have at least half of an argument. K&Ns can foul sensors with oil. The only one I ever bought did this to me (right out of the box), and the cure was expensive. Additionally, oiled-fabric filters will pass more dirt than dry paper filters. There's no free lunch in Newton's universe...if a K&N of a given size passes more air than the same-sized paper element, then it's passing more dirt, too. Basically, it's just an oily rag with holes in it. The difference in dirt may not be great, but it gives the dealer legal ammunition nonetheless. They can argue that the sensors won't like the oil and the rest of the engine won't like the added dirt...and then you'll be stuck trying to prove them wrong. It could get expensive really quick...

__________________
____
Bob

heminit

I have used the same dealer installed wet K&N air filter on my 2003 Ram since new. Cleaned and re-oiled more than a couple of times. Never a failure of any sensor or any build-up of oil. IMO, the PCV system passes more oil through the intake than the properly oiled K&N.

__________________

SRT-Tom

I think some people experience problems with K & N filters when they clean and re-oil them. if not done correctly, an excessively oiled filter can foul a MAP sensor (if so equipped).

As for the filtration, it's obvious that it will allow more smaller particles to pass through than a paper filter. That is the trade-off for a less restrictive filter.

I have the MOPAR/AEM CAI on my SRT. It is a dry filter (washable) and I think that it is a good compromise between the OEM paper filter and the K & N.

Attached Images

OwnerPlate.jpg (72.2 KB, 4 views)

1analguy

The PCV system doesn't pass oil over the sensors. It dumps downstream from them. An over-oiled K&N exposes the sensors themselves to oil mist.

I experienced expensive problems with the K&N that I bought, and they occurred when the filter was brand new and factory fresh...right out of the box. The filter was in the garbage long before I ever had a chance to clean or re-oil it.

Oddly, I have never, in over 40 years of driving and wrenching, had any kind of a problem with a paper-element filter. Guess what I use now...

__________________
____
Bob