LittleBeast

could k&n air filters actually hamper gas mileage?

russ_

If you over- oil or under-maintain them then yes, absolutely. I'm not a fan of oiled filters on any element type mass air setup, but the trap door mass air on the 22re isn't really bothered by an oiled filter.
JMHO, YMMV.

Teuf

I doubt it very much.

iamsuperbleeder

I ran one for about a month. a couple days of wheeling down some dusty dirt trails, and they were nothing more than metal screens with a bunch of mud in them...

they're too much of a hassle, and I don't think their gains are worth the troubles they can and will cause down the road. I went back to a stock paper filter and never looked back

toyota4x4907

I think it depends where you live and the type of wheeling you do ( if you do)
Hamper gas mileage? Yes. Potentially. If you live in a very moist/wet or very dusty area, then they will let more particles into your engine and can clog certain elements of the engine, causing problems. Or let water past.

Personally, I have used a K&N in both my '93 single cab (AT LEAST 80K miles) and in my '95 4runner (about 15K miles) and havent had any problems. But I live in a cold, dry place I actually could tell a difference between the stock paper filters and the K&N. My '95 actually ran better :\

Off-roading, though, I always switched back to the $15 paper filters. Too much mud and gunk flying around.

drmix

Stick with the stock paper filter if you plan on wheeling it. If your just looking to get it just for gas mileage there are other things that will help you more for the money. Such as a tuneup, new O2 sensor, cat and other stuff

TNRabbit

^^Concur


So called "Cold Air" intakes & the associated crappy filters are one of the worst things you can do to the long-term health of your engine. Stick with OEM intakes & filters & you'll pull MUCH MUCH MUCH less dirt/filth into your engine.

MaK92-4RnR

I stopped using a K&N. its not worth it on a 4 wheeling vehicle. the paper filter works so much better, and is much less of a hassle.

LittleBeast

well they are supposed to last forever but after repeated washes and blow drys w the air chuck haha and after being run over somehow and bent back with a pair of plyers and at least 100,000 miles im wondering if its time for a paper air filter?? hahaha

jeetS

More air=more fuel...

yotarover

i pulled my afm from my 89 dlx, along with the box ( had a k&n filter ) and put it on my 86. works better than the stock 86. last 3 months or so i haven't cleaned it, but i haven't wheeled either. i avg around 18mpg around town.

matt92yota

your supposed to let them air dry. it clearly says not to use an air compressor to dry them...

Teuf

I have had my KnN in 20 years or so now, no issues.

Lawn Dart

I ran my '93 22R-E for ten years with a K&N and put over 100,000 miles on it. It paid for itself, because I only bought one $10 cleaning kit and it lasted quite a while. I definitely rode that truck hard and had it in deep mud many times. I was very satisfied with it and I never had a problem. However, if you were to contaminate your paper filter, you have to trash it and buy a new one. The K&N one is very easy to clean and reoil, although you need to let it dry. Normally, I'd do it at the end of the night; and it'd be ready the next morning.

LittleBeast

no blow chuck damn i wonder if i can tumble dry it with my socks hahaha

Badger62811

I've been running K&N filters in both my rigs since June. I noticed a huge gain in HP in my Durango. A little less MPG (for obvious reasons) but only 1-2 mpg on the freeway

Didn't notice any change in my Yota. At 5,000 feet and almost 18 years old, it runs like a turd no matter what. I did notice a tiny increase in performance back in September when I ditched my 265/75s for some lighter 245/75s and emptied my tool box. Bottom line for me is: $20 for each throw away filter vs $60 for a K&N. It pays for itself in just a few months.

creswellhick

ya ive wheeled many times with my kn never had a prob u have to maintain them once in a while but guranteed a mil miles

Badger62811

I'd like to get the whole cold air intake set up for my Durango (street driver)

But there's no way I would go with it in my truck. I've seen a new Dodge Ram with one and a ruined engine when they got it a little too wet.