Oiled air filter problem

[Fanophins]

Hey Fella's, It's been a while but I want to warn people about oiled air filters and Mass Air Flow Sensors. I had a hard time figuring out why my truck was running awful and was getting O2 sensor code and knock sensor codes. Long story short it ended up being oil from my Jim Wolf Tech. cone filter that I had just cleaned and oiled too much obviously getting oil into the MAF. So it was stalling all the time until I figured it out. Hope this helps somebody because the CPU never gave me a MAF code.

[R2D21]

Originally Posted by Fanophins

Hey Fella's, It's been a while but I want to warn people about oiled air filters

I have never understood the concept of using an oiled air filter in the first place. I dont see how it can help your truck in anyway better then a standard air filter, after all these are not diesels. Clean air in is all that is required on this end, complicating the process by adding oil filters is no bueno.

[YEPEE]

You do have to be careful with the oil(I run a cai on my car)... but they do make dry filters, which I may turn too

[Deerhurst]

I wouldn't even run an oil filter on a diesel. It's more apt to suck bad junk in. My dirt bike sucks in oil from the filter and that is some really light sticky nasty oil. Makes a mess in the intake, carb and reeds.

For a dry filter I've been looking at AEM Dry Flow. Seems to be good. Any comments on that?

[Fanophins]

The oil is used to catch the dirt particles so that the cotton can be cleaned over and over so the filter will last forever. I put it on right after my headers and never had a problem in 8 years but it's easy to over oil.

[Deerhurst]

Ive been running oil type filters in offroad stuff for years and never have been able to get one to filter how I want it to. Most of them Ive run are a foam material saturated with oil. Too little and I get dirt and too much and I get oil everywhere. Never did find a happy medium. I now run an oiled pre-filter and an oiled main filter for applications that require an oiled filter to make sure I can actually filter dirt. On the downside I now have 2 filters to pull out of the intake when they get clogged and the engine tries to suck them in.

[johnber]

never under stood the oil over the filter thing myself, the real old oil bath filters were great..... just had to have enuff brains too understand how the thing worked and enuff drive to keep em serviced. When Mt st. Helens blew it was the only filter system that worked. Everything else just ground up. This new oil over fabric ..... might get more air , but ya git way more dirt , even the paper cleaners do a better job.