Which AIR Filter Do You Use?

Not to many dirt roads until the summer when i go camping but other than that. Mostly city, highway, around town driving. I ran the K&N on my 13 and haven't gotten around to putting it on my 16 yet. Just wondering if its better to have a dry filter instead of the oiled one?

 

Dry filters and oiled filters perform differently in terms of how they catch debris. An oiled filter requires an oily base to trap those particles, while a dry filter uses a template/design to trap them. If the oiled filter collects too many particles over time, they will start seeping past the filter and into the intake itself. This can foul the MAF sensor. That is why oiled filters require maintainence over time. If the filter is over oiled, then that excess oil can collect on the MAF as well which could end its life.

 

Ya when i oiled it before it was light and not heavy and didn't have a problem. Just maybe if i switched to a dry and a AFE it would have a box around it which should help for cooler air, at least that's what you would think lol.

 

Tacomas already come from the factory with a cold air intake, so there isn't really a benefit to buying an entire cold air intake kit. If I were you, I would purchase the AFE Pro Dry S and insert it into the stock airbox. Save you a little cash.

 

Might just sell the K&N and do that!!!!

 

It's an air filter....not a supercharger. An air filter alone will NOT increase air flow in a naturally aspirated engine. It MAY allow more air to flow into the engine, IF the engine is starved for air and trying to draw more than is available with a different filter. Internal combustion, naturally aspirated engines work like a pump. As they expel exhaust, the draw in new air. Fuel is introduced with that new air. A proportioned amount of fuel most be available with the air if air flow is increased. If you would increase air flow, you have to increase fuel flow also to retain correct air/fuel ratio. With that, increasing air flow would DECREASE fuel economy if you were to be able to draw more air in to the engine. The engine will only draw what air it can draw..... No accessory will change that reality, short of a supercharger or turbo. The limiting factor is valve opening size (affected by lift and duration of camshaft) Without some form of compressing air, only a predetermined volume of air can make its way into the engine. Cooling or heating air CAN affect it's density, but the physical volume of air is limited to what the valves can pass. Modern automobile manufacturers engineer and build their engine air filtration accessories to accommodate slightly MORE air flow that would be needed at peak demand, even with a partially clogged air filter. A different and clean filter will NOT increase power on it's own, nor will it increase fuel economy on its own. Anecdotal comments aside, there is NO scientifically gained evidence of otherwise.

Air filters are NOT voodoo science. They will NOT change physics. They will NOT alter reality. The ONLY quality a filter may or may NOT offer is better filtration. More capacity to flow air that isn't needed, at the expense of poorer air filtration is HARMFUL to an engine, not a horsepower booster.............

 

Technically speaking you are correct. Whenever I had my K&N on, I felt that the truck was slightly peppier. In other terms, it didn't FEEL like it was trying to gasp for air as much compared to a paper filter. I believe many run the reusable air filters, so they don't have to keep purchasing new paper ones. It's honestly up to them to make that decision. I've had many friends that run the K&N's without every reaching a problem over 100,000 miles. Of course, it depends on the location, but for the average city commuter an aftermarket filter would be fine. I just wouldn't suggest offroading individuals to run an oil based air filter.

 

Its a free country do what you like but a fancy filter won't improve performance imo

 

So from everything I've read the best options would be
K & N,AFE DRY,STOCK since I drive pretty much 99 percent of the time on the street K&N should be fine..... Thoughts?

 

Anyone have any experience with the K&N dry filters?

http://www.knfilters.com/search/product.aspx?prod=71-9039

Compared to the oiled version of that filter, it offers less gain in HP, so one would think that it has less airflow, and therefore filters debris better as well.

 

Though this article may be of interest..

http://www.gmtruckcentral.com/articles/air-filter-study.html

 

its like this Stock paper filter=best filtration and does the intended job, After market High Flo filter= most air less restriction=more dirt enters the engine, no real performance gains.

 

AFE Dry here

 

Brand new 2017, 3.5, 4D, LB, TP.
Always heard positive things about the the K&N so I bought one and ran one tank of fuel.
After noticing no difference and maybe lesser MPG I searched more and more only to find what some of the post and links here said.
Post #626 nailed it. That summarized what the studies stated.
There will be no gains for typical daily driving.
The engine only need so much air and the stock filter gives it what it needs.
K&N is a "POOR FILTER". Yes it may let the air through with less restriction but, multiple studies have shown that it is a poor "filter".
I put the stock back on and will return the K&N.
Highway- 22-23 MPG.
Around town- 18 MPG.

.

 

K&N drop in filter and removed the secondary charcoal filter. Definitely breathes better.

 

As many have mentioned k & n , cai etc. do not improve performance but do cost more

 

I'm aware. I just like the fact that they're reusable so they'll save you money in the long run. And more air getting into the engine is most likely caused by the removal of the secondary filter.

 

Reviving a very old thread... does a afe dry filter have any benefit over stock? whats the big difference?

 

https://i.gifer.com/IOHH.gif

 

looks like it was over due... the previous owner is pissin me off more and more!