427, It was the fine dust here in the low desert that convinced me to junk the K&N....After a bad day at the track and driving back home I flat out forgot about changing the filter back to the A.C. Delco....
About 1,000 miles later and looking around the engine with the air cleaner off I noticed some dirt within the primary carb bores....FINE dusty dirt entered entered and that was it for the trash can bound K&N...
By the way, you mentioned using the same oil testing methods as the trucking industry------do you know of any of those truck lines running an oil-wetted filter?????????
Mark, not at all. But why does that matter? They do what works for them and I do what works for me. The others should have no problem understanding the risks, oil test reports, like I posted, are pretty simple to read and understand. The oil is either dirty or it is not. The part that probably gets them confused is the self professed wisdom of the egotistical "internet experts" who condemn (or praise) a product, yet have no experience with it.
Sam
Let's see now, you believe in UOA like the trucking companies use, but not in type of air-filters they use.
Now Mark, come on now, that is really lame logic. I also listen to country music but I don't own a cowboy hat.
Don't give up though, keep slinging it out there, odds are something will stick one of these days.
Be cool
Sam
2001.5 Dodge QC2500 coal burner, 6spd,BD brake,a pile of other stuff!
Chipped, K&N'd, and loving it!
2008 Thor Jazz 2870UK 5er
Sam. Based on your posts so far, it seems you almost agree that you've been lucky so far. I will agree with your EGT claims, I had the same success with mine on my previous tuner equipped PSD Ford when pulling up the mtns. But I knew I was chancing things based on the fact that I was running a tuner on my engine. It was a calculated risk. I believe the same holds true for oil wetted filters. My Blackstone tests also were clean, but I often wondered how much luck played into it. I read many posts on 'thedieselstop.com' about what everyone called "dusted" engines.
Roadfrog wrote: Sam. Based on your posts so far, it seems you almost agree that you've been lucky so far. I will agree with your EGT claims, I had the same success with mine on my previous tuner equipped PSD Ford when pulling up the mtns. But I knew I was chancing things based on the fact that I was running a tuner on my engine. It was a calculated risk. I believe the same holds true for oil wetted filters. My Blackstone tests also were clean, but I often wondered how much luck played into it. I read many posts on 'thedieselstop.com' about what everyone called "dusted" engines.
I do consider myself a lucky guy, got my health,a good job, still got all my hair on my head But never really thought that luck has anything to do with this. I started doing oil tests just to verify that it was indeed safe to use them. Like any mod, it was a calculated risk, like tuners, which I also have. The oil tests proved to me that there was no risk. Either there is dirt in the oil or there isn't. If there had been, I would have chucked it. After three tests and 80,000 miles and nine years, same results. There is no reason for it to change short of a hole in the filter or intake system. Same with the tuner, exhaust temp gauge shows me that it too, when used properly, is safe also.
Heck, it's a calculated risk just starting my truck and driving it here in the 'hood. So, not so much luck, just a little homework and common sense.
I have read all the comments and I go back to page 2 with the tests on the K&N and ac filter... posted was ..... the K&N “plugged up” nearly 3 times faster, How can that be with such a poor filter.....
just_loafin
Jim83Itasca wrote: 427, It was the fine dust here in the low desert that convinced me to junk the K&N....After a bad day at the track and driving back home I flat out forgot about changing the filter back to the A.C. Delco....
About 1,000 miles later and looking around the engine with the air cleaner off I noticed some dirt within the primary carb bores....FINE dusty dirt entered entered and that was it for the trash can bound K&N...
Jim
My experience exactly. I used to have a 1/4 mile dirt(dust) driveway. I put a K&N in my Dodge diesel, and where the downstream intake was spotless with the paper filter, it quickly became coated with a layer of very fine dust. I didn't learn my lesson and when I put the "Ram Air" K&N in my 460 motorhome the same thing happened. But just food for thought, it might be that the oil filter picks up some of this dirt and a whole lot of folks don't keep their vehicle long enough to see advanced wear anyway so they have no complaint. I would guess that most of us get rid of our vehicles for a lot of reasons and a worn out engine is probably not at the top of the list.
Retired Anesthetist. Pilot with mechanic/inspection ratings.1996 Jayco C 22 foot with 460/Banks Powerpak/Bilsteins.Wife and daughter. Two cats which control my life. 1975 Ford F-250, 84 Coupe Deville, Thorp T18, tons of tools and tons of junk.
just_loafin wrote: I have read all the comments and I go back to page 2 with the tests on the K&N and ac filter... posted was ..... the K&N “plugged up” nearly 3 times faster, How can that be with such a poor filter.....
just_loafin
Simple----a good paper filter will have a lot more total square inches of filter media due to more and deeper pleats in the filter media.
Back in the early 90s installed one on a 460ci.
Crankcase oil was getting a lot dirty and within a year the engine started to burn 3 to 4 quarts of oil between changes.
Jim83Itasca wrote: 427, It was the fine dust here in the low desert that convinced me to junk the K&N....After a bad day at the track and driving back home I flat out forgot about changing the filter back to the A.C. Delco....
About 1,000 miles later and looking around the engine with the air cleaner off I noticed some dirt within the primary carb bores....FINE dusty dirt entered entered and that was it for the trash can bound K&N...
Jim
Now this post is interesting to me. I cleaned my K&N filter two weeks ago. I spent last week on vacation. Seven of us with 4x4 rockcrawlers spent more than 28 hours on the dustiest trails I have ever seen (no rain at all this season!). Very fine dust that just floats and lingers in the air. I was in the middle of the pack most of the time. I could not see the truck 30 feet in front of me.
I added a quart of oil to my engine and forgot to put the oil cap back on. About an hour later, I realized what I had done. Raised the hood and oil was everywhere! So, today, I go out to spray the engine with Simple Green and pressure wash everything under the hood to get rid of the oil. I like to take off the K&N filter and replace it with a ziploc bag and some rubber bands.
The outside of the K&N is caked with dust. I take a clean white towel and wipe down the inside of the MAP sensor. No dust. None. Not even a little. None. Zero.
I just don't get it. There are some very real K&N haters out there. People that I honestly believe have had a bad K&N experience. But, in many yeras and many miles, I haven't. I don't care if scientific reports claim that a paper filter catches 99.999% of the dust and a K&N only catches 80%. I just verified that NO VISIBLE DUST is getting past my K&N. And, my filter saw more dust in one week than most cars will see in years.
And I just love the argument that "if they were so good, the OEM's would install them from the factory". Yea...the OEM's install all the good stuff right from the factory. Get real...
Nothing like a good K&N debate or a good WM parking debate to stir the crowds.
Jim and Deanna
Tiffin Allegro 35QBA 2007 Carson Trailer 22' Titan TH Trailer Toad
Me, Wife, Boy/12, Boy/9, Girl/7
1985 Toyota 4Runner FIVE quads, THREE kids, TWO motorcycles, ONE wife, ONE dog, ONE cat!
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come on now, that is really lame logic. I also listen to country music but I don't own a cowboy hat. 
