K&N's and dirt.

[qwertydude]

It seems K&N's are like Amsoil on every motor forum lots of anecdotal evidence that they work just as good as paper filters but flow more. I personally couldn't wrap my head around that one since you can see right through a K&N, yes even go-ped people argue about it. I personally never buy any vehicle that has ever had them. From personal experience of wiping the intake tubes of everyone I know who ran them and getting dirty fingers. I feel the put too much dirt. And now I finally found real irrefutable proof in a standardized test, ISO certified no less. The fact that dirt bikers usually don't use it was enough for me, but that they use uni-filters is even worse than using K&N's no wonder people think dirt bikes wear their engines out so fast. Uni-filters let in even more dirt!

http://duramax-diesel.com/spicer/index.htm

[ineedanap]

Cool link.  At least it did show that the uni and k&n flow more air when clean than any other filter.  I guess I should go wash my lunchbox.

[The Buddha]

K&N is dirty ... in fact I am planning to put a GS together one of these days and only run with stock air box and clean paper for 48K miles and see if it uses as much oil as my 89 did which was run from 15K with K&N. That bike though used oil even at 15 K.
Cool.
Buddha.

[qwertydude]

Easy enough I've been using the original filter for 34,000 miles, yes oem I check every so often and it's not even dirty so no need to replace it. I've run mostly Rotella changed every 3000, with some walmart, rotella synthetic and one horrible experience with Mobil Delvac 1300, oh yeah and oil filter changed every fourth oil change. No discernible oil consumption on my oil changes, maybe 1/8 of the hash marks if I've been doing a lot of high speed freeways like multiple trips to vegas and back. No more oil consumption than when I got it at 4000 miles. 25,000 miles was my first valve adjustment, all within spec, no shim changes needed.

You guys will quickly know about my 50,000 mile report on durability, looks to be just fine from what I see now.

[johnny ro]

I threw my KNs out, for my cars. I read debate on Miata site, walked out, removed, held up to sky, saw right through and gave up on them. OEM for me now.

[ecpreston]

I don't drive through a lot of dirt. K&N stays in