Pre Oil Filter Screen
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From: Northern California
Pre Oil Filter Screen
I am starting to notice more advertisements for a "oil filter screen". I have never used one, but it looks like a mesh, fine screen that you use on an oil filter. You place the screen on the filter, the screen has a "doughnut hole" to clear the stud post on the engine block. It is suppose to trap any particles, grit, or deposits before it enters the oil filter. My question is, a "snake oil product" or a new invention that works? If any of you have used, or are currently usinf this oil filter screen, what are your thoughts concerning this product? Thank You... Ed 
Senior User
Joined: Jun 2004
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From: Twin Cities MN
I've seen ads for these, too. It looks like a round piece of window screen.
Wouldn't any particles large enough to be caught by this screen be also caught by the filter? I would think that if this thing is catching a lot of large particles, your engine would be in serious trouble.
Wouldn't any particles large enough to be caught by this screen be also caught by the filter? I would think that if this thing is catching a lot of large particles, your engine would be in serious trouble.
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Joined: Sep 2000
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From: Southern California
Seems to me like it would place a bottle-neck ahead of the filter. An oil filter has plenty of surface area to catch stuff and still filter effectively. If it were to somehow get plugged, it would bypass and you would still get lubrication. If you place a screen ahead of the filter and it plugged, you would lose filtration and the bypass default.
Cargo Master
Joined: Dec 2004
Posts: 2,232
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From: NE Texas
The purpose of these screens is not to further filter the oil. The purpose is strictly for inspection so that you can see if something is going wrong in the engine. If there are metal particles big enough to be caught by the screen, then there is something SERIOUSLY wrong in the engine.
The problem is that if the particles are this big, it is probably too late to do much about it. This is really a race piece. If they see particles in that screen after practice or qualifying, they know that they have to change engines if they are interested in finishing the race.
IMHO, these serve no purpose for a street engine. The few bucks that would be spent for these screens would be better spent on a magnetic drain plug.
Have a great day,
Doc
The problem is that if the particles are this big, it is probably too late to do much about it. This is really a race piece. If they see particles in that screen after practice or qualifying, they know that they have to change engines if they are interested in finishing the race.
IMHO, these serve no purpose for a street engine. The few bucks that would be spent for these screens would be better spent on a magnetic drain plug.
Have a great day,
Doc
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 7,298
Likes: 45
From: Southern California
Originally Posted by MBDiagMan
...This is really a race piece. If they see particles in that screen after practice or qualifying, they know that they have to change engines if they are interested in finishing the race.
IMHO, these serve no purpose for a street engine. The few bucks that would be spent for these screens would be better spent on a magnetic drain plug.
IMHO, these serve no purpose for a street engine. The few bucks that would be spent for these screens would be better spent on a magnetic drain plug.
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