Filter cleaning and K&N oil vs. Other oil

royalt67

New Member
May 12, 2009
2,023
45
0
Klamath Falls, Southern Oregon
So I discover the other day that my K&N filter is seriously dirty with impacted mud and dust so my Blaster is running so rich that the plugs are wet and in a short time barely runs at all. (I'd been having my son clean it) It actually looked good on the surface but we'd just been spraying it with cleaner and hosing it off, but I finally read the instructions on the K&N cleaner and it says soak so I did that too. Anyway, I finally get the damn thing really clean and dry (what do you know you can actually see through it) and oil it up. Put it in and the damn thing won't run. Acted just like it was plugged solid. WTF? Thinking maybe I just put on too much oil, I cleaned it again and sprayed lightly with K&N oil. Sumbitch won't run, take off the filter, runs fine. Whatthehell?

Cleaned again and put on without oil, runs ok. So then I get the bright idea to try a different filter oil. Actually I've been using this other oil for months, this was the first time I actually used true K&N oil. Whadyaknow, it runs fine with the other oil. So I start comparing this filter to the K&N out of my Raptor 660. Not only can I see light through the K&N from the Raptor but it also has lots of tiny holes. The filter out of the Blaster has no holes, just solid mesh. Hmmm. At this point I notice that the Blaster's filter doen't say K&N on it, it just looks like one and therefore must be a Vito's or one of those $13 ones from eBay. I also compared the viscosity of the K&N oil to the other generic oil, the K&N is much thicker.

Obvious conclusion: You can't use K&N filter oil on a non-K&N filter.

So, has anyone else had this problem with K&N vs other oil?

Also, do you think I damaged the filter, maybe making the fabric inside the steel mesh "fluffier" by using a toothbrush to clean off the mud down in the pleats, somehow changing the way it holds oil?

I know this is kind of a long post, but I lost some more hair last night....
 
the same thing happened to me. i just threw the knockoff away, it sucked anyways. i could tell the difference right away. k&n actually puts thought and science into their design and consider such variables as oil retention and air flow. the knockoffs just go for shape and color, haha
 
also, are you running just a clamp on pod filter? if so, i suggest running light oil with a prefilter like Outerwears. alot better than exposing your filter to the mud dirt dust and chain lube if your not running a airbox. then you just strip off the outer wears and wash it off.
 
Yeah, exactly what I was thinking. Just because it looks like a K&N doesn't mean its performing like one. I might go with a Uni just because of the price. The Twinairs seem good too.

It is the type that fits the stock airbox. I was thinking about getting the Outerwears that velcros over wear the lid goes.