and

can

have

it

10K and changed out. 99% of the time with a new Fleetguard or Baldwin !
I don't know any drivers who use K&N in their OTR rigs. After reading
the tests about them being junk it makes sense why.

Read some of the following and then tell me how "great" K&N are.

http://home.usadatanet.net/~jbplock/ISO5011/SPICER.htm

Info - Automatic Transmission Shift, Engine Driveability Concerns or
Service
Engine Soon (SES) Light On as a Result of the Installation of an
Aftermarket
Reusable, Excessively Oiled Air Filter #04-07-30-013 - (03/05/2004)

Automatic Transmission Shift, Engine Driveability Concerns or Service
Engine
Soon (SES) Light On as a Result of the Installation of an Aftermarket
Reusable,
Excessively Oiled Air Filter 2004 and Prior Cars and Light Duty Trucks
2003-2004 HUMMER H2

  First, Inspect the vehicle for a reusable aftermarket oiled air
filter
DO NOT repair under warranty if concerns result from the use of a
reusable aftermarket oiled air filter.

The installation of an aftermarket reusable, oiled air filter may
result in:
  a.. Service Engine Soon (SES) Light On
  b.. Transmission shift concerns, slipping and damaged clutch(es) or
band(s)
  c.. Engine drivability concerns, poor acceleration from a stop,
limited engine RPM range

The oil that is used on these air filter elements may be transferred
onto the Mass Air Flow (MAF) sensor causing contamination of the
sensor. As
a result, the Grams per Second (GPS) signal from the MAF may be low and
any or all of the concerns listed above may occur.

When servicing a vehicle with any of these concerns, be sure to check
for the presence of an aftermarket reusable, excessively oiled air
filter.
The MAF, GPS reading should be compared to a like vehicle with a OEM
air
box and filter under the same driving conditions to verify the concern.

Transmission or engine drivability concerns that are the result of
the installation of an aftermarket reusable, excessively oiled air
filter
are not considered to be warrantable repair items.

 This part is from a gentleman who actually TESTED K&N in real world
applications.

Subj: K & N filters
John: If I wrote "subjective" I meant "objective".. I was responsible
for evaluating re-usable air filters for a major construction/mining
company that had hundreds of vehicles ranging from large earthmovers
to pick-up trucks and salesmen's cars. This study was embarked upon
due to the fact that we were spending upwards of $30,000 a MONTH on
paper
air filters. Using them one time then throwing them away.. I initiated
the study in that I was convinced that a K&N type filter or oiled foam
would save us many dollars per year in filter savings, man hour
savings, and of course engines as these would filter dirt better than
paper. (yes, I had read the K&N ads and was a believer)

Representative test units were chosen to give us a broad spectrum from
cars right through large front end loaders. With each unit we had a
long history of oil analysis records so that changes would be
traceable. Unfortunately, for me, every single unit having alternative
re-usable air cleaners showed an immediate large jump in silicon (dirt)
levels
with corresponding major increases in wear metals. In one extreme
case, a unit with a primary and secondary air cleaner, the secondary
(small paper element) clogged before even one day's test run could be
completed. This particular unit had a Cummins V-12 engine that had
paper / paper on one bank and K&N / paper on the other bank; two
completely independent induction systems. The conditions were EXACTLY
duplicated for each bank yet the K&N allowed so much dirt to pass
through that
the small filter became clogged before lunch. The same outcome occurred
with oiled foams on this unit.

We discontinued the tests on the large pieces almost immediately but
continued with service trucks, foremen's vehicles, and my own company
car. Analysis results continued showing markedly increased wear rates
for all the vehicles, mine included. Test concluded, switched back to
paper/glass and all vehicles showed reduction back to near original
levels of both wear metals and dirt. I continued with the K&N on my
company car out of stubbornness and at 85,000 miles the Chevy 305 V-8
wheezed its last breath. The top end was sanded badly; bottom end was
just fine. End of test.

I must stress that EVERYONE involved in this test was hoping that
alternative filters would work as everyone was sick about pulling out
a perfectly good $85 air cleaner and throwing 4 of them away each week
per machine...

So, I strongly suggest that depending upon an individual's long term
plan for their vehicles they simply run an oil analysis at least once
to see that the K&N or whatever alternative air filter is indeed
working IN THAT APPLICATION... It depends on a person's priorities. If
you
want performance then indeed the K&N is the way to go but at what
cost???

And no, I do not work for a paper or glass air filter manufacturing
company nor do I have any affiliation with anything directly or
indirectly that could benefit George Morrison as a result..