I wish I had saved that 6000-mile old air filter so I could take some pics to share.... you really wouldn't believe it was only 6k miles on it, as the only parts of the pleats that were still white were those on the outflow side of the filter.  The inflow side was totally caked up and I pity the poor engine whose owner decides to run without filtration down here (and I'm sure there's a bunch of them).  All I can tell you is that I'm very happy with my new K&N, even though it causes much consternation to the jiffy-lube guys when they see the sticker and realize that I'm no longer a customer for their paper filters. Tough luck for them <G>.

We also use K&Ns on the Eagle540, rectangular ones that fit into the built-into-cowl air boxes, and the conical ones that connect directly to the turbo inlets when we run during testing without the cowl.  They are pretty amazing devices and well worth the $$ they get for them.
 
  <Marv>



"jesse farr" <jesse@jessfarr.com> wrote:

 Marvin: You know we can all make cheap cracks but when it comes to cracks
about the effect of oil and that sandy dust you fellows get down there, in
looking at frame rails, etc. around where the oil fumes, spray, etc. settles,
which for some reason, with that sandy dust you fellows have, makes a heck of
a good undercoating material, sets up like concrete and is probably a better
preservative coating than most factory undercoating. Needless to say, would
probably quickly be the death of anything that actually needs lubrication.
While ever 3000 mile changes seem a little frequent with good synthetic, you
may be absolutely correct in doing so. It may even be worse than driving in a
coal mine. And, let's face it, k&n works well, perhaps better than most things
in those kind of conditions and really does require much more often service
than their recommendations; so, you are probably absolutely correct there
also.
 
 I just got through looking at crud created at, in and around rv generator run
down there, not on beaches, etc. and it makes me think that general air borne
dust would almost make filtration for any/everything a necessity; especially
when combines with any oil contact. JMHO.
 
 jofarr