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Educate me: what's the point of a remote filter? #5178846 08/04/19 12:39 PM
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SnowDrifter Offline OP
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So since the fluid is sucked first through the transmissions internal filter then passed through the cover, which is where a remote filter would be mounted. What's the point of it? Seems the fluid would be filtered before it gets filtered

I may or may not look into installing one. Want to see the best life out of my components but I also don't want to ibtroduxt more failure points and throw away money, know what I mean?


2005 Tahoe - 140k
2003 Forester(the swagger wagon) - Rehomed
1999 Passat - Rehomed
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5178865 08/04/19 01:13 PM
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atikovi Offline
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Does the remote filter replace the one in the pan? If so, fluid and filter changes are much quicker and easier with a spin on remote filter.

Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5178907 08/04/19 02:11 PM
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Rand Offline
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usually the in pan filter is just a rock-catcher, spin on filters catch much more.


2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5178949 08/04/19 03:45 PM
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The details are in the specifications. Many transmission filters with polyester media are 160++ micron rated. In other words, near zero restriction to flow at any temperature.

By comparison, external filters can be 10 micron rated or less, with very high efficiency.

And of course, there are always the submicron bypass type filters.


People who count on their fingers should maintain a discreet silence.
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5179103 08/04/19 07:35 PM
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SnowDrifter Offline OP
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So then the question becomes, what is the appropriate way to size a filter at a given micron rating? Or how would one determine the flow rate through the cooler?


2005 Tahoe - 140k
2003 Forester(the swagger wagon) - Rehomed
1999 Passat - Rehomed
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5179470 08/05/19 09:07 AM
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SnowDrifter Offline OP
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Researching further, it seems the most appropriate would be to install a rather low micron rated filter on a housing that has its own internal bypass valve.

Problem is, my keywording is terrible and I'm having difficulties finding such a housing. Does anyone have any resources? Trying to find one in the 5 to 10 psi range


2005 Tahoe - 140k
2003 Forester(the swagger wagon) - Rehomed
1999 Passat - Rehomed
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5181162 08/07/19 12:48 PM
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Linctex Offline
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Originally Posted by SnowDrifter
Researching further, it seems the most appropriate would be to install a rather low micron rated filter on a housing that has its own internal bypass valve.
Does anyone have any resources? Trying to find one in the 5 to 10 psi range


I use a filter base/housing for a Log Splitter hydraulic system..... it's EXTREMELY generic - - - about as common as the good 'ol FL-1A or PH8A

A Baldwin BT839-10 (10 micron) is on there (the RED one) - it'll last the life of the vehicle!

[img][Linked Image][/img]


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Educate me: what's the point of a remote filter? [Re: Rand] #5184584 08/11/19 07:09 PM
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dave1251 Offline
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Originally Posted by Rand
usually the in pan filter is just a rock-catcher, spin on filters catch much more.



And with Rock catchers the transmission usually fails I don't know after the automobile is junked.


make the inside of your engine oil cap white.
don't use.
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5199392 08/28/19 09:54 PM
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TheLoneRanger Offline
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Originally Posted by SnowDrifter
So then the question becomes, what is the appropriate way to size a filter at a given micron rating? Or how would one determine the flow rate through the cooler?

Virtually all spin-on filters have a bypass valve, as does the Magnefine. This eliminates the danger of clogging. You determine the flow rate through the cooler circuit by running a hose into a
bucket and timing the flow with the engine running. For instance, the flow rate for a Jeep AW4 cooler circuit is 3/4 quart per minute. The flow rates for spin-ons and Magnefines are many times
greater than what's needed in transmissions.


Some days you eat the bear, some days the bear eats you.....
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5275425 11/23/19 12:17 PM
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Pyrotechnic Offline
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Originally Posted by SnowDrifter
Researching further, it seems the most appropriate would be to install a rather low micron rated filter on a housing that has its own internal bypass valve.

Problem is, my keywording is terrible and I'm having difficulties finding such a housing. Does anyone have any resources? Trying to find one in the 5 to 10 psi range


The Donaldson Hydraulic Catalog has all information you want.

https://www.donaldson.com/content/d...G/Hydraulic-Filtration-Product-Guide.pdf

Take a look at the SP15 series. The mounts and filters use a 1"-12 thread that is very common (like Linctex mentioned). This style of mount/filter is used on a lot of medium duty truck applications for an external transmission filter.

Last edited by Pyrotechnic; 11/23/19 12:17 PM.
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5276970 11/25/19 10:38 AM
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Many transmissions today do not have a user serviceable pan and filter. Filter is only replaceable by splitting the entire transmission case apart. So a separate filter could be useful to extend the life of the deeply buried internal filter. Vehicle manufacturers consider such transmissions as good for the life of the car, and some you cant work on at all without taking it all apart.

They even consider fluid good for the life of the vehicle, so make it tough to change or add any.

Last edited by sdowney717; 11/25/19 10:39 AM.
Re: Educate me: what's the point of a remote filter? [Re: SnowDrifter] #5280892 11/30/19 06:56 AM
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Excel Offline
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I dont see why anyone needs more than a pan filter unless your doing some endurance [censored] or have a tranny burning parts up


2015 Ford F150
2015 Ford Mustang GT,Whipple powered
2017 Yamaha FZ09

Re: Educate me: what's the point of a remote filter? [Re: Excel] #5283499 12/02/19 10:33 PM
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OLEJOE Offline
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Originally Posted by Excel
I dont see why anyone needs more than a pan filter unless your doing some endurance [censored] or have a tranny burning parts up


How about if you're putting 1000ft.lbs. of torque through the input shaft? Towing cross country with a trailer? Trying to keep a $60-70,000 dollar vehicle maintained.


Jack of All Trades. Master of some.
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