Oiled Air Filter: Problem or No Problem

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Jul 30, 2019 | 06:50 PM

#31

RLXXI

Member

Joined: Feb 2013

Posts: 26,680

Likes: 6,253

From: Big Easy

Quote:

Originally Posted by Ravenfield

So if oil from an filter can coat an air sensor what is the best way to clean it?

M.A.F. Cleaner

Jul 30, 2019 | 07:12 PM

#32

River1

Senior Member

Joined: Jul 2015

Posts: 3,627

Likes: 796

From: Michigan

Quote:

Originally Posted by Siber Express

My 1972 Peterbuilt had an oil bath filter on it as well as my 1974 Ford Bronco from the Factory. So no they were alive and kicking well into the 70's on Ford Vehicles (1975 Bronco was the last year) and on a 1990 692 Detroit Diesel in an Air compressor.

Yep, I had a 65' International Travelall that had an oil bath air intake. Taking it off sucked but other than that, no problems.

It's funny how the discussion always revolves around dust. I spent some time working in Sweden and Norway where it was common to spray air filters but they did it because of water not dust. It's not unusual to see the engine bay packed tight with snow there which a hot engine melts. A paper filter can easily get soaked and allow water through it. An oil spray helps to shed the water from the filter and weep holes are drilled in to the box or air cleaner.

Jul 31, 2019 | 12:02 AM

#33

Steve83

Member

Joined: Jan 2018

Posts: 11,256

Likes: 1,770

From: Memphis, TN, Earth, Milky Way

Quote:

Originally Posted by Ravenfield

So if oil from an filter can coat an air sensor what is the best way to clean it?

Best: don't put that much oil on the filter, so it never gets on the MAF.
Next-best: a new manufacturer-branded (Ford/MotorCraft) MAF.
3rd: a good used OE MAF.
4th: pay a pro to clean it properly.
5th: a new knock-off MAF.
6th: blast it with a can of consumer-grade chemical.

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