How to make sure your upgraded air filters should mount and be maintained

[@fredkuhn165]

Most aftermarket cold air intakes are actually hot air intakes

[@1987FX16]

And ironically the factory airbox/intake IS a cold air intake.

[@fredkuhn165]

@@1987FX16 and the factory intake tube is larger diameter than the exhaust pipe lol

[@user-lz3sv5sw9u]

At the very least you’ll see a tiny bump in fuel economy now that your engine is sucking in fresh hot air. Of course your car is now even slower than stock

[@neoskater420]

Please keep thinking this way so the ones that do have them if you have a CAI will understand. He even said if you have that shield you will pull cold air well those ones actually work good the others he mentioned are called a short ram CAI which is short closer to the engine and is sucking up hot air unless you have a proper working hood scoops not the ones too show off. 😉

[@huh0123]

@@user-lz3sv5sw9uah yes, because a less efficient burn with hot air is good for fuel economy.

[@kc360awareness]

Insert Gale Banks rant on “cold air” intakes.

[@turbo-6.7l21]

You beat me to it. I was going to say “Gale Banks has entered the chat”.

[@augustustheman]

so does banks say it doesn't make a difference?

[@turbo-6.7l21]

He gets very scientific about air density.

[@shawnbrodrick8673]

@@turbo-6.7l21 air density? Did you see his 10 part series on rear differential covers?🤯🤯🤯

[@turbo-6.7l21]

Yes! The man makes being a gear head scientific!

[@Zaxby722]

Lmao the look with the "Don't do that" felt like it was my dad saying it to me as a kid right before I proceed to infact "do that" and end up hurt. 😂

[@rosieclark3661]

I thought I was the only one who felt i was about to be spanked 👍🏽😂

[@ThBlueSalamander]

Yea XD DISAPPROVAL

[@douglashook1512]

Dave, you run one of the cleanest, nicest, most equipped shops I've ever seen. But even you can't fix stupid 😅

[@GothicNightWing]

😂😂😂😂😂

[@blackice7408]

Car care nut?

[@reubenhammock8834]

FACTS 😂

[@zeeMuniStacksBundles]

🙈🤝

[@mainewoods1862]

An engine builder once said to me : an engine will last as long as it takes it to eat a cup of dirt. I have focused on best filtering filters ever since. Plus I drive on dirt ( dusty ) roads frequently. I am pretty diligent about my air filter maintenance.

[@DaveDavis-ml5ic]

Yep. I've seen people clean the air box out with a rag before a filter change.

[@patron6666]

@@hemzuletes the best application is a vehicle specific application. Most ‘cold air intakes’ actually work against their purpose because of the placement. This was pointed out in the video. So to answer your question, the best one is the one some subreddit says works best for your specific car

[@adamreiss4548]

​@hemzuletes Depends how much flow you need. Oem will filter good but restrict flow. K&n type will allow more flow but let more dust through. Stock motor quality oem style is best option

[@keanumartin659]

@@adamreiss4548the whole reason for the oil on the k&n filter is so it sticks to the filter and doesn’t get sucked in the engine

[@jeremyjeremy8795]

air filter should be changed every time you change the oil, it’s the first line of defense to keep your oil clean

[@bocajuniors55]

I did a Blackstone oil analysis on my car (KnN) without oiling the air filter. My silicone levels were off the charts. (Foreign debris entering engine). After oiling my KnN filters properly, my oil analysis came back with minimal silicone (foreign debris) levels. This is TRUE knowledge.

[@johnconnor7501]

I didn’t know the oil and the air mixed 🤨

[@Joe-hu7di]

@@johnconnor7501 They do! In the cylinder. It gets scraped off by the piston rings and carried all over the engine by the oil until the silica wears it all out. Silica, sand, dust it is extremely abrasive.

[@monroe2245]

Problem is, those who don't know how to properly service their filter's end up overdoing the oil. That'll end up coating the inside of their intake along with the maf. No good.

[@jaymesmustaine684]

I talked to K&N directly and they told me that the air filter on my system is a dry filter, no oil required. They did tell me it’s one of the few filters they have that doesn’t require oil.

[@glenncase3659]

I have the same filter in a cold box. I specifically got it for my engine's working environment. It's worked perfectly.

[@viciouss6.2]

I mean they have the option for both, you just have the dry option. It’s nothing new, dry and oiled has been a thing

[@NBay4runner]

Wonderful but that's not the air filter he's talking about.

[@steveib724]

Then why bother buying one

[@Aku112811]

@@steveib724You buy it just for the sound.

[@southwestxnorthwest]

I installed a K&N intake kit in my 2004 Tacoma and used the supplied heat shield and actually lost horsepower. The factory intake was better and had no issues

[@Aashishkebab]

Almost like the engineers aren't idiots

[@JakeStewart1343]

​@@Aashishkebab Some aftermarket part engineers are 👍

[@robertocampos2756]

Gota dyno tune it

[@minus3dbintheteens60]

Factory intake is always better, in every measurable way, from power to noise to cost to cosmetic

[@grantdavis5992]

My 04 with the 3.4 has 302k and stock. Runs great. I do use SFR100 in my oil for the last 115k miles.

[@1gx619]

When I was a young man I bought into the whole K&N thing. Turned out to be more of a pain in the ass than it was worth! Now with grey whiskers I just replace the factory air filter every oil change I do in my garage. Vehicle runs great and no worries about cleaning and oiling!

[@michaelwilson2151]

They're better for motorcycles. Dirt bikes, especially... you gotta clean and oil the Factory air box filter anyway...

[@ZaneofAustin]

Disposable life is no life for me. Wasteful landfill engulfing mentality I have 4 cars. Id be buying filters left and right, or Spend money one time and do it right, use the the one cleaning kit for all of them. So if you have expendable cash and you're lazy, sure just buy a paper filter and drive stock

[@user-ln7of9gs4s]

@@ZaneofAustinwow. People are lazy for using factory air filters?

[@PKperformanceEU]

Bullshit. You must have been an ignorant clown. They work wonderfully if you know what you do. Applies to life as well

[@esvmichael]

@@user-ln7of9gs4sthat’s not what he said

[@AlphanumericCharacters]

If you put too much oil on that filter it can ruin your MAF sensor.

[@michaelmccarthy4615]

Or the wrong gauze oil. It’s sticky oil that stays on the filter element

[@FocusMerks]

​@michaelmccarthy4615 no it happened to me😂😂

[@brandonroeder2461]

I can testify to that. Either the dealership I bought my WRX from used an oiled filter or the first owner did. Had it for less than a week before the MAF shit out on me. Been using an AEM dryflow filter with no problems since.

[@adriannewman1322]

Also on gm vehicles if it get on the maf it can cause the tranny to not shift right

[@bobbygetsbanned6049]

MAF sensor is a lot cheaper than an engine!

[@Iamablackkid]

My boy is a professional giving tips and advice to all the young people that don’t know about cars 😂

[@theoutsider675]

Everyone needs to learn somehow. I hate people who act like they were born with the knowledge they have today.

[@Iamablackkid]

@@theoutsider675 for sure but keep your head up and don’t be dumb

[@henryhooker3282]

He aint your boy 🤡

[@austincoutu]

@@henryhooker3282🤙🏻

[@Yippeee5959]

He told me, now i won't do that and be that

[@dogsbyfire]

Another great video. It’s inconceivable that someone would run a filter designed for oil without putting oil on it. Bought my first K & N air filter in 1984. Never had a problem with them, and I really enjoy the increased throttle responsiveness. I follow their instructions precisely on cleaning and oiling. Thanks for the continued education!

[@TheKeelman1]

K&n quit suggesting to put oil on their filters. It used to come with it and it used to come old. It doesn't anymore for a reason

[@CNCMatrix]

Unless you had your car specifically tuned for a high flow filter for another 3 horsepower (if that)at $200 an hour... all the "better throttle response" and "added power" is in your head. Watch the ProjectFarm video on filters and I'd be willing to bet you'll replace that K&N ASAP. If you insist on spending money on a placebo part at least go with an AEM dryflow. No oil and is washable/reusable.

[@user-wt5bo7zd7y]

No difference go ahead completely remove the filter 0 restrictions. The maf will tune it out. All cars come with little paper filters even 1600hp Bugatti

[@jkim6200]

Not inconceivable, but more counterintuitive or incredulous.

[@jimh.412]

They are a waste of money.

[@stephenmartinez1]

I love my k&n cabin air filter, I’ve been washing it with the kit for 10 years in my dodge avenger. But I believe the standard disposables are best for the engine air filter.

[@Robyrob7771]

Cabin? air filter. You breath through that? In engines they will foul the MAP sensor over time because of the oil.

[@edwardthayer9386]

​@Robyrob7771 yes you do.

[@boraxguy8302]

@@Robyrob7771yes there is a cabin air filter and engine air filter two completely different parts and functions

[@e.b.6766]

@@Robyrob7771 I agree with you 100% about the oil messing up ur MAP… to take it even further it can potentially mess with other things. GM had a TSB out back in ‘04/‘05 that read, “…if customer complains of hard/ no shifting conditions check for K&N filter. Also, DO NOT REPAIR under warranty…” Sure ‘nuff, my transmission took a crap somehow from the oil contamination. Was able to get that K&N CAI crap out before getting the truck towed to the dealership. They got me back on the road. Would’ve been different if I’d would’ve left all that aftermarket stuff under the hood.

[@Eduardo_Espinoza]

didn't think of that, thx! @Robyrob7771

[@MrHeHim]

Pro tip; excess oil runs in to the intake and coats the MAF sensor throwing off your readings, clean the MAF with MAF cleaner spray about an oil change after you install one or when you clean and re-oil

[@65hotstang65]

I know that today’s vehicle systems share information and the transmission is particularly vulnerable to over oiling that air filter. My bro had 4 transmission rebuilds in a year, at the ford dealership where he bought the truck. The last time he picked it up, it had a factory type air filter housing on it and a huge bill that they expected him to pay. He simply said that it was installed by your technicians before I bought the truck.

[@cmichaelhoover8432]

I used K&N air filters on flat track (dirt track) race bikes in 1970 -1974 till I retired from racing. After a race the outside of the filter would be solid brown with dirt while the inside would be spotless clean. Needless to say, I cleaned and oiled the filter after every race.

[@chethammer]

If that was the case then you probably overoiled your K&N.

[@calebhenderson3817]

Very underrated to hear your engine suck the air in, imo. I love the way an engine sounds pulling through one of these.

[@Joe-hu7di]

Ever flipped the lid on a quadrajet? Cadillac with a 472ci makes a great sound when you put your foot into it!

[@falcorthewonderdog2758]

As a GM technician I made a lot of money diagnosing and repairing issues caused by cheap aftermarket junk like what you're showing in your video. Keep it up it's gravy work for me.

[@modernmusclecar1904]

Cheap junk? It's an air filter. There is nothing wrong with that filter 😅

[@michaelarkell5437]

​@@modernmusclecar1904I think he is referring to cheap installs like not putting the air filter on correctly.

[@modernmusclecar1904]

@@michaelarkell5437 Gotcha

[@guthrie_1]

@@modernmusclecar1904 K&N is kind of a joke in the aftermarket community. It’s not highly respected.

[@modernmusclecar1904]

@@guthrie_1 Do post up whp #s from a cai. Or just know theres about 3 or 4 whp difference between cheaper cai and the more expenses. You're not winning or losing a race because of your cai.

[@aaronpreston47]

I have one of those filters on my car, still have yet to make a box for it. I used a scan tool and found out my intake air temperature was super high, especially at idle. If ambient air temp was say 70°f my intake temp would be 120°f at idle, and at least 90°f driving. Got to get around to do it or just replace it with the original air box and get a square K&N filter that fits it.

[@ACSharkey]

Just get it done,. Write it down and do it.

[@Eduardo_Espinoza]

maybe a snorkel?

[@busterscrugs]

replace with a stock airbox, these filters hardly filter jack sh*t. look up ISO 5011 duramax air filter test!

[@davidelliott5843]

My car has a cold intake out of the box. It also has boom dampers that don’t obstruct airflow AND it’s on the front panel so gets maximum ram effect not that it’s ever very much).

[@zapstrapsnmudflaps8609]

Put the stock back box in and DONT buy a k&n filter, might aswell run no filter

[@mobileautorepairs2169]

"Dont do that!" Nuff said! Thank you! Keep these great videos comin

[@peterjean5761]

As a plumber owning my business too; I look forward every evening watching your diagnostic geniuses

[@johneubanks5951]

Man Dave, I share these videos of yours with a few of my buddies who say ya don't have to oil those K&N's..Now they'll be watching ur videos hearing it from a real mechanic and hopefully they'll change their tune! Thanks bud..🇺🇸💪🤘

[@DavesAutoCenterCenterville]

Thanks for sharing

[@balcorn9211]

K&N makes regular air filters too…..

[@merlenelson4894]

Banks sells oil and no oil filters as well. (Look similar.)

[@CJ-jo6do]

We do a lot of air filter upsales, removing K&N filters and installing the OEM filter in later year Ram 6.7's. Oiled filters and MAF sensors do not mix, causes air density calculation errors and trucks to have DTC's for EGR, DPF Regen frequency, and other drivability issues. That and the Cummins has a habit of literally sucking the oil out of the filters. Every truck I've worked on that has a K&N filter has dust inside the CLEAN side of the air box. I've already had to replace a few engines due to dust-out from a K&N filters.

[@cosmic7234]

That’s just American car problems. Oiled filters won’t cause “errors”. The kits they come in typically have a larger rigid pipe to the throttle body and a larger filter so it can flow more. American cars are made like shit so that’s probably causing the ECU to freak out. Not really the CAIs problem. I got an AEM filter in my car and the ECU adapted just fine. Obviously no real power increase but it works, it’s reusable, and you get that sweet ass noise

[@CJ-jo6do]

@@cosmic7234 The number of vehicles I've worked on for this issue and the service bulletins that talk about this says otherwise. Oiled filters have a tendency to coat the MAF sensor element(s) with oil, sometimes dust as well, making them read incorrect (showing lower than actual air volume). And when the engine computer is looking at the MAF sensor for EGR operation, air density calculations for fueling and turbo operation, and air density calculations for determining soot load in the DPF, problems start to occur. This is coming from a full time diesel tech. I deal with this like this on a daily basis.

[@REALBanannaman]

@@cosmic7234lol when the ecu and MAF are bosch thats so funny

[@cosmic7234]

@@REALBanannaman so what it’s a Bosch ECU? An ECU is just a computer with some ROM chips that store the maps. If it’s programmed by a bunch of dumbasses it’s still gonna work like shit just the same

[@cosmic7234]

@@CJ-jo6do cleaning some oil off the MAF is a different issue then engines failing and trying to blame it on some cotton. Is that an actual issue? Yes, that’s a frustrating issue with many wet filters. You’re right there, and I didn’t fairly consider that complaint. However beyond that. When excess oil is sucked into the intake and after it’s been cleaned from the MAF/MAP, an aftermarket filter won’t catastrophically damage an engine. neither will cause such a large volume of dust to be sucked into the cylinders that it kills an engine. Aftermarket filters are marginally less effective than stock paper ones. If you’re in a dust bowl and surrounded by incredibly fine particles of dust sure but I don’t think you’d live long enough to be burdened by it cause you’ll die from Silicosis. But aftermarket filters and intakes aren’t usually installed on company work trucks or moon rovers, only personal vehicles. People even run ITBs just fine all the time (although these are on actually good cars) and drive em on the road. The engines are dying cause it’s a Dodge and American cars are just a joke. The service bulletin is trying to save face. Edit: when I say people run ITBs all the time, I mean there are a few who run them all the time as their daily. Enough for it to be statistically significant that even without a filter and the engine just sucking in whatever, it doesn’t kill them. It’s mainly a thing people do to their JDM cars (I’ve never seen ITBs on a German or modern USDM yet), and of course JDM cars are just excellent. Basically, my point is the tiny bit extra of fine dust that’ll pass through aftermarket high flow filters is insignificant and the reason you’re replacing engines on RAM trucks probably has something to do with it being a Dodge.

[@willg.5168]

Had one in my '99 Tahoe w/5.7. I'd wash it at night and in the am when its dry, LIGHTLY spray the filter with the oil and give it some time to settle into the fibers(15-20 min), then install. I did this procedure annually and loved the response from my 350❤️

[@jpo1056]

Been running K&N filters in the stock airboxes of my car and pickup for as long as I've owned them, always oiled. Have the aftermarket K&N on my Harley, again...always oiled. Very happy with all 3, as are my vehicles.

[@SilveradoUSA1]

That film of oil can get on the MAF sensor if the filter has too much oil.

[@Coolhansolo]

You should clean your MAF sensor alot anyway. But you probably dont know that.

[@brarautorepairs]

Yes oil your filter properly but I've seen oil make the MAF dirty when there is blow-by or consistent high rpm operation that overwhelms the PCV system.

[@chrisjones6002]

Project farm tested those oiled filters and they did not do well. Yes, they flowed air well but it didn't stop much of anything.

[@TrackRecord3455]

I have a K&N air filter and I don't oil it , I believe it will suck more dirt and dust when it's oiled, and get clogged.

[@chrisjones6002]

@TrackRecord3455 the oil helps them filter better as far as I know but it still doesn't do much. I'd replace it with a normal filter.

[@DavidTMSN]

It's also about restriction as more air doesn't necessarily equate to better performance.

[@Rs500ybd]

I am a Master Heavy Rescue Mechanic UK This man is Spot on .100 % on The Nail I Have Seen Pre Det Because of them .... Solid Advice..

[@jonathanjuillerat9831]

Thats why I love my volant system. It is a closed box utilizing the factory inlet and a scoop on the front. No hot engine air .

[@chriskoop4888]

Totally agree with you. I see this issue all the time. Most should just stick to the factory setup.

[@Peter-wo4uo]

I mean, if you got a good enough Intercooler it doesnt matter what temp the intake air is.

[@onegrumpyboi2914]

@@Peter-wo4uo cold air is more dense, so no, it does kinda matter. probably not that much, though.

[@DulcetNuance]

Cold air intakes don't do much good if you aren't also getting rid of exhaust restrictions. You can make the intake as wide and free flowing as you want but the exhaust pressure is still there to slow you down.

[@randmayfield5695]

Again, I've learned something valuable from watching this channel. Thanks!

[@DavesAutoCenterCenterville]

Glad to hear it!

[@chethammer]

I've been a K&N guy for 23 years. When I got my new truck I started researching air filters a little more and after watching several videos on their effectiveness (Project Farm included) I decided on the Purolator One for my 2020 Silverado.

[@TENNSUMITSUMA]

I don't mess with that oil crap. That's why I got the afe dry reusable 'cold air' filter that fits in the factory box. The real or supposed 5HP gains is enough for my 2015 nissan altima, even if it is a 3.5SL. It certainly feels like it's breathing easier, which is all I care about. Pair it with a purolator boss oil filter & pennzoil ultra platinum every 6 months or 10k miles and I ignore the engine because I know it's golden! The transmission on the other hand, it's going strong with complete fluid flushes at the nissan dealership every 2 years, without fail, whether it's needed or not. However, i'm still watching it like the eyes of God! Can someone tell me why my car has paddle shifters when it's a cvt?! I've had the car for 2 year, and never so much as touched them, much less used them, once!

[@scottydo5282]

I drive an Outlander Sport with a CVT and paddle shifters. They are effectively useless for daily or "sport" driving, cause CVTs just suck in general. They are however very useful for utility driving or when driving in bad terrain. If you're towing something or driving on icy roads, the shifters can give you some extra control of the car. Obviously not as good as a manual transmission, but better than nothing.

[@clancytaylor7714]

These K and N filters are high quality and do a great job of filtering but they must be maintained properly and regularly. My Dad has a 1998 Dodge Cummins that has 620,000 miles on it and it has had a K and N most of its life. I believe that filter has helped that old engine last so long but it has always been cleaned and oiled.

[@zapstrapsnmudflaps8609]

K&N let in alot of dirt compared to most others

[@xxshadowkingxx6070]

@@zapstrapsnmudflaps8609yep k&n are mainly for higher flow and catch big particles but dust still makes it thru

[@redsquarejay]

They blow engines

[@redsquarejay]

Highway miles. You never saw dust

[@clancytaylor7714]

@@redsquarejay actually it's on a farm truck which spends a good 60% of the time on dirt roads or off-road in pastures and fields.

[@OhMySack]

If you run one of these, start doing used oil analysis. You'll be blown away at how much silicon that will be detected by the analysis. It's eating your engine from the inside out. I put a K&N on my vintage Honda Nighthawk. I received an immediate message from Blackstone after submitting my oil sample. They thought I was running without an air filter! They had NO IDEA what filter I had. It's real.

[@LionWithTheLamb]

They're garbage in my opinion as they only filter the large particles.

[@wizard_of_poz4413]

​@@LionWithTheLambmaintain. Your. Filter. It's not that hard

[@HCG]

Silicon? Is that from the filter oil or something else?

[@ragu4545]

​@@HCGit's sand or clay basically all the dirt that is getting past the air filter.

[@HCG]

@@ragu4545 Ah, I read it as silicone. Makes sense

[@user-dd5vn2dn7g]

I used to race an 87 Mustang on the quarter mile. The previous owner had left the K&N in the hot engine compartment; it ran 107 mph at the finish line. I built a custom cold air box and the 'Stang immediately picked up an additional 2.5 mph!

[@santiagolugo2120]

Dropping a lot of knowledge everyday Good job Sr.

[@AA-HandyRake]

You don't have to oil all of them. There's certain ones that are wet and certain ones that are dry. Using a dry filter is just fine. You're not going to intake any extra debris. Using a wet filter in certain areas is going to be detrimental. Your filter is going to clog much faster and much easier. Especially if it's in a dry dusty environment. I'll stick with my dry filters.

[@davidelliott5843]

David Vizard (who knows a big about engines) tested K&N with the correct oil and found the filtration at least as good as OEM paper but K&N got better as the filter got dirty.

[@PeterAngles-jq7gr]

They have terrible filtration David Vizard's videos suck anyways

[@mitchelldecker7771]

Just got rid of the cold air intake on my 6.0 powerstroke and went back to stock. Had one for a couple of years on my 6.7 Cummins I used to own. I hated washing them, hated oiling them and came to realize that every filter I put in was crap and basically was just going to dust my motor. I kept finding dirt in my intake tube whenever I would pull my filter. As far as I’m concerned they’re completely useless in the real world where we work with our trucks out in the dirt. 800+ hp race trucks that run 10 seconds in the quarter need a CAI, but stock trucks DO NOT need them. I’ve now experienced better throttle response, drivability, and fuel economy with less in cab drone and noise when I returned to stock air intake in two trucks. Y’all do what you want, but I’m never running a CAI on a diesel truck EVER

[@ButteredToast_93]

Great coherent explanation, glad we cleared that up

[@MrBigR928]

I gutted my factory box & still run my Wix filters 👍🏾

[@adotintheshark4848]

should have left the box alone. They spent $$$ developing it to protect and also flow air.

[@jack_walt]

Best middle ground is to keep the factory air box and replace the panel filter inside with something performance related. Very minor performance gains but at least it’s not being heat soaked and making you lose performance

[@jimmoravec1326]

Back in the day I used to make a little dome over the carburetor made from a screen door to break the molecules down. I don’t know if it did much good but I was 17 years old and I thought it might help give me a little more power 😆👍

[@TrippyWoodStock]

If you use a K&N or spectre always retain the factory box cover. IT IS DESIGNED TO SHIELD FROM HEAT. ask me how I know lol. I installed about 5 air intakes all metal and I learned two things… 1. Titanium heat wrap and silicone spray are a god sent if you have a cold air intake that travels over a header, and 2z KEEP THE FACTORY PLASTIC AIR BOX OVER YOUR AIR INTAKE. your air intake will pull air from the fender or ambient air in general. If the box isn’t there it isn’t keeping the degrees 10 or lower so it instead pulls from your engine which is WAY hotter than it needs to be. Heat wraps, and a good filter you oil every 15k miles is a must if you want all the performance you can get guys. Hope this helps.

[@timkis64]

i used to get a kick out of the kids who put a small pod filter & a muffler with a 1 inch entry & 5 inch exit on their "ricers" & think it was a ferrari.when it sounded like a bumble bee with diareaha.but still couldnt outrun a stock corrola.

[@eric63377]

Yes and they do NOT sound good in any way whatsoever and they really sound like 💩. If they take the air filter out or install some cold air kit, cut the AC belt off, power steering off, gut the car, lower it, put rims on it, and lastly put some kind of Fart exhaust on there they now have a 20 second race car that magically goes 10 seconds in their mind🤯🙄🤣. I don't care what 4 cylinder it is if someone puts an aftermarket exhaust on there and does whatever they want is still sounds like a fart machine as they were never built for power or intended for power they were merely designed and built as economy gas saving throwaway engines and cars. As for the six cylinders they sound like Hoover vacuum cleaners.

[@Kryten428]

"bumble bee with diarrhea" It took a while, but there's my belly laugh for the day.

[@Oils36]

@@Kryten428right 😆😆😆

[@skydewz]

@eric63377 you’ve never heard a 4-AGE with ITBs

[@cwheels01]

​@@eric63377That's the silliest take I've ever read. No, they don't sound like V8s, but there are performance 4 cylinders out there. In fact, they're common. A lot of them are impressive for what they are.

[@raymondpalacios3032]

You have to not only degrease them and OIL them. Yes, it costs money but you have to do it. I bought one for my 1999 Ford F250 7.3, and it still works great.

[@rendszer2307]

I got one of 'em short-ram K&N filters sitting right on top of the throttle body. Sounds very joyful, hearing that throttle valve open up. But it is 100% hot air

[@luizcamey4818]

I love this channel, I’m a 3 year tech, I get so much valuable info from you!

[@Roberto-gp3yx]

I have the k&n filters on all my vehicles the difference is that I use the ones that are like factory which fit inside the factory air box … clean them once a year and oil them with the kit and they never cause problems

[@johndc2998]

Called a panel filter, instead of a cone.

[@rickjames9477]

I would hold it up to the light next time you clean it, you see all those tiny holes ur engine is not getting filtered air, it’s getting higher flow sure, but it comes at a cost. Not worth it.

[@dadgarage7966]

An O.E. intake with a K&N drop-in replacement filter is hard to beat in terms of cost and functioning reliably.

[@marty0715yt]

Wrong, dangerous and don't filter as well as a paper one.

[@davidelliott5843]

My diesel had a properly maintained K&N. At 140,000 miles there was no measurable bore wear. Sadly the cam chain and EGR had different ideas which was how I got to checking the bores.

[@dadgarage7966]

@@marty0715yt True, they don't protect against infectious diseases.

[@marvinmurakami8828]

I used to use a K&N drop in filter until I saw a comparison with regular air filters on Project Farm. The K&N allowed a hundred times more particulates to pass through than the regular filters. When I first got my K&N, i held it up to sunlight and you can see a lot of pinhole sized light shining through it.

[@marty0715yt]

It adds air flow via less restriction. Get dusted once. If it was that good the OEM would install it Project Farm is outstanding

[@Sideswipe1135]

At the junkyard I saw a new edge mustang GT that had a custom welded tubing that led out of bay and to the fender/cheek of the bumper. THATS HOW YOU DO IT!!!

[@scdc81]

Best mechanic videos hands down, thank you

[@altonlynch5464]

I haven't changed mine since I got it in 2012, and still looks good.

[@ArticulateArena]

On all my cars I used one of these no box just sucking in hot air. Still got hp boost and the engines lasted 100k miles when I sold or traded them. It improves the sound /looks and that's all that matters

[@jetink600]

Yall got what it takes to not only make this project a success, but to also make it really really nice in the process

[@Slider68]

I don't know if the latest K&N air filters do a better job, but about 10 years ago, they might have breathed better than stock, but they didn't filter nearly as well. I attended a local offroad long weekend trip, where a bunch of trucks rode in convoy on some extremely dusty roads for about 3 hours and about 50 miles. The dust mid and rearwards in the convoy was absolutely terrible (my offroader doesn't have AC and it was hot). 3 of the guys had literally just finished rebuilding their engines, and this was their maiden voyage. ½way through the trip, some of the guys noticed they were burning quite a bit of oil. 2 of the machines burning oil were fresh rebuilds. Later on the weekend we did a water crossing and pretty much everyone checked their air filters to see if water got in. To our surprise, about 6 of them had huge amounts of dust in their intakes, and that was after the air filter. What was consistent was every one full of dust, was running a high flow air filter. Most of these were K&N high flow filters. The trucks with the cleanest intakes were running thick, expensive air filters. Almost all were either OEM or Wix filters. Luckily, on that weekend I had a stock air filter installed. I did have a K&N but had been having trouble with vapor lock because it didn't get cold air like the stock intake and filter did. Ever since that long weekend, I've only run K&N's on street cars that don't see dirt roads.

[@nathanacquaviva9117]

I call those engine killers seen many dusted turbos and engines over the years.

[@1987FX16]

This. Nobody talks about how there is a clear layer of fine dust on the inside of their intake because of the screen door air "filter". I run paper filters in my truck or anything that sees dusty environments, had a knn drop in and realized real quit it's basically just like running a turbo saver screen for a filter it keeps out granular sand and leafs but not dust at all.

[@TheWallsocket]

K&N has very good airflow but bad filtration, plenty of tests out there showing that. Good for a drag car or a boat but I wouldn’t run one on anything that sees any dust.

[@mails5054]

@@TheWallsocket i run a snorkel on my jeep with the stock airbox for a reason. I had one of the k/ns for awhile until i realized i was just letting junk in the engine. Peooople dont tell you much about the filter media, just want to sell you crap. At least i learned

[@16-BITFPV]

No you haven't your just trolling bullshit

[@DavidTMSN]

​@@mails5054You gonna learn today

[@mynamedoesnotmatter737]

“Don’t do that!”

[@senseisoisauce2563]

Misunderstood, I did it- Now my 5.7 doesn't run..

[@thenegus5469]

@@senseisoisauce2563thats fairly normal

[@senseisoisauce2563]

@@thenegus5469 Indeed

[@artillery0811]

0:53

[@Superbpooservice]

@@senseisoisauce2563 Big L lmao ive seen thousands of cars running hot air intakes. not gonna hurt anything

[@21cabbvge]

I clean and re oil my k&n cone filters twice a year or more often if there is any build up. Never had an issue and have lower IAT’s than the stock airbox when paired with a big mouth air ram. They can do their job well if you just buy the right one and take care of it

[@burntout9815]

“Don’t do that!” Yes sir!

[@2K9s]

AFE Power (Advanced Flow Engineering) seems to function well with data that backs it up.

[@Ian-rg3jq]

I had one and used it properly like he said to. It worked great. Kept the engine clean.

[@LogainTheHumane]

Mine has an aluminum heat shield air box with gold heat reflecting tape on the outside of the heatshield. The aluminum intake tube also has a layer of titanium mesh heatwrap with an outer wrap of gold heat reflecting tape. The air is as cold as it can get without straight up using a hood scoop

[@fredkuhn165]

Oil can creep onto mass airflow sensor and cause problems

[@tom4208]

Okay would you rather replace a MAF sensor or your entire engine?

[@fredkuhn165]

@@tom4208 you offer 2 dumb choices, when there’s the better and obvious choice to leave the factory setup alone. You must be using sarcasm

[@troyneverdahl]

@@fredkuhn165 Totally agree with you, but I have noticed that newer K&N filters are dry filters

[@fmlymn1]

The K&N oil is mineral oil with dye Best cleaning method I use is Oxyclean and warm water soak and flush with clean water then sun dry then a consistent coat of mineral oil

[@ryanr1945]

My truck has the exact same setup, great clip thanks dave!

[@tractorboy31]

I did a napa 6637 on my 7.3 and it was getting hot air. I finally was able to get the proper oiled filter box assembly. Havent really notice a difference but i know the 6637 was better than factory but the oiled filter is even better

[@mrchad97z49]

I have a K&N air filter. On the initial install I do use oil, but after it gets dirty and then I clean it.. I dont oil it as much because it retains some gunk in it. And if I go through more than 3 or 4 cycles of cleaning it.. I often just leave the OIL OFF!! I have had my 2005 TL since 35k miles. And I now have 126k miles. Runs fine.

[@lliaolsen728]

There are oil bath filters, We use one on our 1 cylinder diesel generator. Thing is probably 40-50 years old, but runs like a champ. I'm guessing these oiled K&N filters take from that idea, but oil in the intake of gas engines can cause issues with octane. I noticed a detrimental effect of using 87 with some 2-stroke engines, like preignition when running for extended periods. Switching to 89 or even 92 gave much better performance with 50:1. I don't need 5-10 extra HP for less filtration, and more maintenance. So there are not many reasons to go for a K&N as a daily driver filter.

[@b4ph0m3tdk9]

I had aftermarket airfilter like that on my Celica, it sat in the engine room like that, I did not know it was a problem. Now I know.

[@Elypotoy4]

I believe 💯 what u saying. On winter ❄️ I see thaty Truck engine works better than summer.

[@andersonautomotive]

I remember a customer's suburban with an over oiled K&N which coated the MAF in oil, which caused the computer to not only affect engine performance but also soft shifted the transmission to death. New transmission, MAF, and factory air box fixed it right up.

[@crockettslate]

Living not far away from the shop,it rains mud here. Change my filter about every 2 months. I had the K&N system on a used truck I bought. It was pulling hot air, found a factory setup,little 1/2 ton 318,5spd. E3s sun coil,fresh stock filter, I’m averaging about 20 mpg😊

[@Chicomacheeno]

My filter cleaning/oiling game is on point. It’s actually very satisfying.

[@jacobkoz1835]

I have the same one I am not the first owner of my truck, so previous owner installed it. I do like it though. Don’t know if it makes much of a difference but I do maintain an oil it.

[@jkim6200]

I tend to use stock or stock type paper filter in my car, but I use K&N oiled paper filter or UNI oiled sponge filter on my bikes l. HOwever these filters are units that fit insidethe air box to retain mid range torque, rather than individual filters for each carburetor.

[@patstevens2959]

You speak the truth,Dave, thanks!!!!!!!

[@Ghosts54321]

I like this fella, knowledgeable and seems like he is actually honest

[@erichensel-qw7cn]

Thanks for the info, i do oil mine.

[@jamespendergrass1011]

I just acquired an 04 Silverado with a vortec engine I plan to keep around for a long while, and it has no box, just straight up open air filter, no oil in it, ground is visible through the engine bay beneath the filter. I need to order a whole new stock air intake assembly lol, this short saved so much headache.

[@garyfelton2039]

Thank you that's what I keep telling people all the time

[@abelincoln4374]

I wouldn't have done an aftermarket one on mine if it wasnt a dry one to begin with. Since it was, I wasnt too worried. I clean it weekly with compressed air, which is the cleaning method they recommend. If it gets real bad, I'll clean it with soap and water. I also love that it fits in my factory box still, so its still a cold air intake.

[@64Hurricane]

Okay people, note he said a film of oil, this does not mean soaking wet. Had a guy drop off a motorcycle one time and the filters had so much oil in them it had made its way thru all of the passages of the carbs, even found it in the bowls with the fuel. Now imagine this coating all of your intake sensors.

[@Nat_Sarim]

Ahh, thank you. I have long lost track of how many times I've had this conversation. Most guys have no idea how things actually work, but they've heard what's cool..

[@user-tm7kc4cw6s]

Your dedication is inspiring.

[@grantmarks7429]

true for NA motors. doesn’t matter for turbo applications. the turbo is going to heat up the intake air anyway. it’s the intercooler’s job to cool the air

[@user-vg9dg4pu7o]

The clamp on filter prevents the factory air box leaks due to weak sealing design. If we lived in a perfect world we would have an inner and outer filter like heavy equipment utilizes.

[@lancehites6697]

I was convinced when I inspected the intake port on the turbo. Even though it had been oiled (K&N) , there was a film of oily dirt on the port. When I inspect the intake , it better be clean enough to eat off of.

[@martyk1156]

When i was a kid i put a k&n air filter on my motocross bike. I always used vasaline to lube carb boots for assembly. After running the new filter for a few days when i took it apart the vasaline was covered in dust. Never had that problem with the factory Kawasaki filter. Tossed it and went back to the factory filter. No more dust in the boots.

[@reallyhappenings5597]

After about 5 years with a K&N I'm going back to factory filter. I just don't need the extra complexity and I want this engine to last another 21 years

[@Eric-696]

I should call K&N and ask for a job because I tell everyone how much money I save after buying a filter from them; all said and done I love the product and the whole hands on approach of washing the filter letting it dry then oiling it up !!!

[@Freedom_Rider915]

I remember when the oil filter was the only air filter. They didn’t sell paper filters. You pulled out the metal screen cleaned the filter, wipe the old oil out and put fresh oil on the mesh and in the bottom of the filter housing. We have come a long ways haven’t we?

[@ogcowboy5743]

The old 'oil bath' air cleaners.

[@steventeter3332]

I miss the old oil bath air cleaners on your intake manifold. After the Mount Saint Helens volcano eruption those were the only air cleaners that would keep the engine from being contaminated with volcanic ash. We had to change the oil every day but all of the intake air cleaners with filters contaminated the engines with volcanic ash and trash the motor

[@TheDefiledShell]

Mishimoto makes an Air Intake that has a closed off box it sits in and comes with a Carb sticker so you know it will pass smog, it improved the air flow and sounds nice, while also keeping temps down.

[@croman191]

Thanks Mr. Dave

[@dannybigsby2783]

Your getting to be my favorite mechanic on youtube I love it at the end “don’t do that!!!”

[@scottmair563]

Filter oil great tips from Dave listen to this man he knows his s### !

[@Wabits]

another issue on gasoline engines is the air filter pressure drop is what scavenges the crankcase at wide open throttle so when you change to an aftermarket filter without precise CFM@Pressure drop rating for example 500CFM@1.5"Hg you are also changing the crankcase evacuation and this leads to oil blowing out of the engine and its often why everybody blames their truck engines for having awful PCV systems when they in fact are causing the oil to blow out of the engine by changing the filter and neglecting to measure and configure their crankcase pressure properly

[@DavidTMSN]

I learned that the hard way after 10k with a properly done stage 2 cai that routed down into the fender. My turbo was getting too much air. Less restriction doesn't always mean better.

[@jaskajokunen3716]

@@DavidTMSN My old car i had cai instralled right before the MAF and seems like it didn't know what to do with all the increased air flow, car would jerk randomly. Fixed the issue by moving the cai further away 🤔

[@100GTAGUY]

"Cold air" mods aside, one other tip id like to add is i highly recommended using the precharge filter bags they sell for super fine particulants, especially if you operate off road or in generally dusty conditions like in the american southwest. Id rather spend a lil extra money on filters than prematurely wearing my engine. Granted it dont mean much to my 30yo engine who was neglected by seven previous owners. First day i had it i saw the filter was caked solid with granite dust from the Colorado Rockies. Intake had a film of dust and oil from the breather spitting.

[@xannnnax]

this is why i like my intake, it routes in front of my radiator and is outside of the firewall for actual colder air