how often should i change my air filter? my car is daily-driven.

 

Air filters should be replaced anywhere from 20k-40k. I would say around 30k is a good time

 

I do mine every year, they're cheap and easy to swap. I might drive 15-20k per year.

 

I just look to see how dirty it is once in awhile. I like have very clean filters.

 

i checked mine the other day, it had the 93 oem one still in =O but i only have 38000 miles so i guess thats decent.

 

right. go out and buy a K&N drop in. and kable.. you probably need a new fuel filter too (if even your air filter is still oem).. and no, those things are cotton.. have some common sense.. 11 year old cotton... hmmm.. i wonder if /that's/ any good.

 

It's still good, it's still good

 

btw: The drop-in k&n is almost as good as the cone, pull out the resonator under the fender (where the pipe that goes down from the air-box leads) & it'll be practically as good, thats the fastest resperation you can get for your car.

 

didnt know it was cotton, never really looked, so if i knew it was cotton, maybe i couldve had some common sense. its been replaced and the fuel filter was swapped out when i first got the car

 

a '93 with only 38000 miles? amazing.

 

my 89 only had 35 when i got her

 

it had 24 when i bought it 5 months agoish, in may. but i drive everywhere, canada, virginia, so i put a ton of miles on it.

 

sweet. good on ya

 

that is very very nuts.. an s13 with under 70K miles..
*drops jaw.

d00d, take care of it.. lol.. you've seen all the problems us 150Kmile-up S13 owners are having hahaa..

-Idle irregularities
-engine rumbling
-timing chain problems
-lifter/valve lash
etc..

that's pretty nuts that you have that low mileage.


but anyways... every 15K miles is the general rule of thumb.

since you have such low mileage, might as well just get a a k&n drop in. $45 for the rest of the life of your car.
all you have to do is clean it and re-oil it every once in a while

and yes, please do remove that air hose that runs from the turn signal to the intake box. It's completely useless, and i don't think nissan put it there for air delivery..
gives the engine a nice intake growl/surge noise on WOT too

 

thanks, i take good care of it, if anything happened to it id cry. i dont want to go drop in cuz i plan on going ka-t soon.