I clean both AFE and AEM dry flow filters every 30K. The AEM on the Pilot seems a bit more dirty that the AFE on the Tacoma. Both see similar driving conditions.
K&N air filter after 2.5 years pic.
- Thread starter hardcore302
- Start date
Not much in the way of dirty air here in South Florida. The K+N works just fine. Have one on my airplane too.
in some aspect you are correct. I've noticed that with HVAC filters at home. for that type of filter he had, I probably would just tap it a few times and let the big stuff fall off and throw it back in. I'd kind of like to see or perform a test to see how cold the cleaning agent and the oil will get before they turn into solid. it's kind of a nuisance to clean and with dry flow filters now readily available on the market it just makes no sense that they are still making cotton guys and oil. if it had worked out so well I think they would have implement it in people's homes.Yeah, it's just now starting to filter well
- Joined
- Sep 24, 2023
- Messages
- 1,458
Complete junk toss that right in the trash and install an oem equivalent paper filter.
Depends where you live. Out in the southwest, sure. PNW, K&n is excellent
And yet, the K+N seems to be the right choice for certain conditions. It is particularly good for aircraft use. As water will not affect it.
Always been my experience. Have one in 5/6 of my vehicles and have for years.
You'll see no difference vs. running a paper air filter.
Or just clean and re-oil this one...
4WD
$50 site donor 2025
Every young guy deserves these just once:
- K&N air filters
- Flowmaster mufflers
- Register with wrong party
- K&N air filters
- Flowmaster mufflers
- Register with wrong party
That’s not bad, my non-mechanically inclined brother’s went 113k without a cleaning because he’s not very bright.
https://bobistheoilguy.com/forums/threads/k-n-with-113-xxx-miles.326979/
https://bobistheoilguy.com/forums/threads/k-n-with-113-xxx-miles.326979/
wow
No way I would ever use a K&N filter again on any motor I want to keep long-term...just MHO. For drag racing, sure...but that fine trace of dust that gets through cannot be good.
Had one on a CBR 600 back in the day, then on my Envoy. When I saw the very thin layer of dust on the carb intake I checked the SUV. Inside the intake tract I could wipe it with my finger.
I heard they have been known for this, and I was a believer after that. Cannot imagine the very long-term effects on the rotating mass. Maybe others have had good luck but no more for me. The Green Filter is a better choice.
Had one on a CBR 600 back in the day, then on my Envoy. When I saw the very thin layer of dust on the carb intake I checked the SUV. Inside the intake tract I could wipe it with my finger.
I heard they have been known for this, and I was a believer after that. Cannot imagine the very long-term effects on the rotating mass. Maybe others have had good luck but no more for me. The Green Filter is a better choice.
I’m not fond of K&N but now that it is seasoned (used & dirty) its ability to filter contaminates has improved at the expense of reduced air flow. If your vehicle performance has not suffered leave it in.
Cleaning it will increase its ability to flow more cfm while allowing more contaminants to pass through.
A clean K&N is a terrible filter.
My opinion.
This exact thing happened to me on a dual side draft Webber carb set years ago. I tried different oils and filter brand to try to get rid of the micro dust hazing of my intake runners. I just went back to paper/synthetic fiber media after that, never saw the dust hazing in my intakes after the move away from oiled cloth.
32,000 miles on this factory installed one. 1st 15,000 were in Toronto, 2nd were with me as a daily commuter on country highways and weekend gravel sightseeing. To me it looks just as bad as the OP’s
Good idea to clean, and let be completely dry, then apply oil (lightly) then let that dry, then pat with rag to get residual oil off.
The oil is not good for MAF sensors.
Similar threads
