No, they get destroyed pretty quickly, seals leak, oil consumption rises, compression drops. Even a holed filter will cause damage in short order.
210,000 miles with K&N air intake system
- Thread starter Georgiey22
- Start date
No, they get destroyed pretty quickly, seals leak, oil consumption rises, compression drops. Even a holed filter will cause damage in short order.
So if a K&N relies on vibration in the intake tract to filter properly, then why do they recommend them for everything (turbo cars and cars with long intake tracts). So other words, they don't really give a toss as to what they sell them for. If you don't have a vibrating intake charge you're just SOL with big holes in your filter?
I think overall K&N makes a good, reliable filter. If there were any serious issues with them, we would have heard about it long ago. My problem with them is as I stated.
They're a PITA to service, and could possibly interfere with a warranty. It's easier and much faster to swap out a paper pleated filter, than it is to wash, rinse clean, then wait for it to dry, then oil and reinstall a K&N filter.
They're a PITA to service, and could possibly interfere with a warranty. It's easier and much faster to swap out a paper pleated filter, than it is to wash, rinse clean, then wait for it to dry, then oil and reinstall a K&N filter.
My small turbo engine has never "sucked the oil off" a K&N. I think you have to look at the size and type of engine before making that comment.
Those folks are so funny 🤣
Ready to March into the dealer yelling "MAG MOSS BRO" with their heavily modded car. They have no idea that aftermarket performance parts have nothing to do with this regulation...that it was just so you did not have to buy parts/service your car at the dealer and that orange Fram oil filter wouldn't impact your warranty.
I'm actually more interested in why you'd pay someone to do a tire rotation - especially a dealer.
This should be pretty easy to understand - not everyone has the area/gear or desire to do this especially on a full-size truck. Dealer rates for this kind of thing aren't any different than anywhere else in my experience.
Was just curious as the OP has performed a lot of quality and in-depth work on his own...and/or I'm just incredibly cheap
If you run an aftermarket intake and are a warranty-worrier, it's so easy to just remove it/replace the factory one if you need to visit the dealer for warranty work that could in any way be pegged on the intake. Some dealers are just so crappy about this kind of thing when there is no reason that intake had anything to do with the issue. Further, many OEs offer warranty-friendly mods like this i.e. Mopar, Ford, etc. for their performance vehicles. Just something to check with your dealer about. If you are buying a car that comes with a drag pack, I'd say the dealer is way out of line giving someone a hard time about an intake
I would agree. However that won't stop them from doing it......... I'd say the dealer is way out of line giving someone a hard time about an intake
Sure - happens all the time and part of the risk of modding your vehicle. You just have to source a dealer that doesn't get hung up on this trival stuff.
Depends on operating conditions. Any experience or data to back that up? Is “destroyed pretty quickly” 10K miles? 30K miles? When i say the vehicle will operate “OK”, i meant : “mediocre, but still operational”. I think we’re in agreement for the most part.
Anecdote 1: My daughter bought her ‘08 XC70 used and the air filter was not properly installed by previous owner, leaving a significant gap thru which unfiltered air was being pulled. This vehicle was clearly operated on New England dirt roads for part of its life and i would guess it was run that way for 20K miles at a minimum. Car runs fine (with well over 210K miles), no leaks, no oil consumption.
Anecdote 2: I bought an ‘89 Mustang GT with a bit over 100K miles that had a K&N installed by the previous owner. Impeccably cared for otherwise. One look at the “see thru” K&N, and i determined quickly that it had to go in the trash. Vehicle was operated in Chesapeake VA area, so a relatively clean area for operating a vehicle (no significant road salting/sanding)/clean roads. Fantastic power, so i doubt the compression was impacted, but the car drank oil pretty quick, probably past the valve seals.
Guess I missed it ... but where does K&N recommend vibration of the intake tract to make their filters work better. I'd like to see the physics behind that, along with the cow magnets on the gas line, lol.
That's what ol buddy is describing in the video. Said that steady state air will pass more particulate, but due to the vibrations in the intake tract, that's how the K&N was designed to work to catch more.
Linked at the specific spot he says it.
Following that logic, they would work great on a single-cylinder engine, and more and more crappy as the cylinder count increases.
Guess adding a "tornado" air swilling device in the intake tract would help then, lol.
Nahh, its got to vibrate!!
Just like the hairs in our lungs.....which isn't even close to being the same.
I'm sure that old dude has some respectable work under his belt, but I'm not on board with the vibrating filter malarkey. Especially when he says (paraphrasing) 'sure it has big holes in the filter medium, but when its vibrating, it catches the dirt that would otherwise go through'
Ok, but what about those particles that are lined up just right to skip right on through your vibrating media forcefield?
within 1 oci they tend to have issues without air filter. My experience as a mechanic for 20 years.
