Do Wix Air Filters have oil on/in them?

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I was looking at Wix Air filters and wondered if Wix (O'Reilly's #49053) uses any oil on/in them. I do not want to contaminate the MAS.
 
Many cellulose air filters use a "tackifier" that is sometimes "oil-like" but is sometimes more "waxy" than "oily." Oiled cellulose was more common in the '60s and '70s. Either way, it's designed to attract particles.

The MAF/oil thing is a myth, but even so the amount used on a dry air filter is so small that it can't pass the filter.
 
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The Fram air hogs had that stick stuff I think...I still have a bunch of them I bought for my S-10.
 
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I suspect this would be a basic "Air Filter 101" issue for any engineer working for Wix, Fram, Purolator, etc. Whatever oil/wax coating they may or may not apply to a name brand OEM replacement filter would be intentionally MAF safe. It'd be hard to imagine them screwing that one up by error or omission while designing a filter or new filter application. I'm not a big fan of K&N filters, but they claim to have debunked oil+MAF "urban myths" in their document #89-11850(Google).
 
Originally Posted By: chevys10
The Fram air hogs had that stick stuff I think...I still have a bunch of them I bought for my S-10.


^^^Those were actually marketed as an oiled, washable, cotton gauze, K&N-type (and competition for) filter when they were still around.

They were NOT a paper/cellulose OEM style filter like we are discussing here.
 
I also was wondering if there is much difference between The OEM Ford Paper vs Wix paper vs Purolator classic Air filter in regards to pleats/airflow/airbox seal.
 
honestly.. there's not much of a difference pertaining to OEM filters, they're all paper/cellulose/fiber style.. only big difference is the amount of pleats and thickness of material.
not to bash fram, but hold a fram and a wix in the light, which filter is brighter? (the fram).
 
Originally Posted By: oilstudent24
I also was wondering if there is much difference between The OEM Ford Paper vs Wix paper vs Purolator classic Air filter in regards to pleats/airflow/airbox seal.


Unfortunately there is, at least with my application (2002 Ranger).

For some reason, Purolator left out the lower "step" in the gasket that you will find on an OEM filter and most aftermarket filters. This part of the gasket is essential to sealing the air box properly. Without it, the two halves can move around, potentially allowing dirt to get by. Most Purolator products are fine, but I just can't use their air filters in my truck knowing the air box isn't sealed properly. If the gasket for you application looks just like OEM, I would expect it to be fine.

I've actually found that Fram air filters seal the air box the best in my truck. They have nice thick gaskets. I won't use their oil filters, but I will gladly buy their air filters.
 
Originally Posted By: 01rangerxl
Originally Posted By: oilstudent24
I also was wondering if there is much difference between The OEM Ford Paper vs Wix paper vs Purolator classic Air filter in regards to pleats/airflow/airbox seal.


Unfortunately there is, at least with my application (2002 Ranger).

For some reason, Purolator left out the lower "step" in the gasket that you will find on an OEM filter and most aftermarket filters. This part of the gasket is essential to sealing the air box properly. Without it, the two halves can move around, potentially allowing dirt to get by. Most Purolator products are fine, but I just can't use their air filters in my truck knowing the air box isn't sealed properly. If the gasket for you application looks just like OEM, I would expect it to be fine.

I've actually found that Fram air filters seal the air box the best in my truck. They have nice thick gaskets. I won't use their oil filters, but I will gladly buy their air filters.


I too started using fram. Oil filters are sketchy but their air filters are better then the AC-Delco that they came with.
 
Originally Posted By: EricF
honestly.. there's not much of a difference pertaining to OEM filters, they're all paper/cellulose/fiber style.. only big difference is the amount of pleats and thickness of material.
not to bash fram, but hold a fram and a wix in the light, which filter is brighter? (the fram).


Each application is different and of course it's not just the media, but the seal as well.

Some makes/models have good filters with one brand offered, while the same brand suffers in another model; reversal with other brands, etc.
 
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