A/T Remote transmission filter.

[dvldoc]

There are a few basic types of factory automatic transmission in pan filter medias.

PAPER Paper based media with phenolic resin
BRASS Brass screen
STAINLESS Stainless steel screen
GALVANIZED Galvanized screen
POLYESTER Polyester screen cloth
FELT Phenolic Saturated felt

Here are some effiency ratings and these are the good filters from Fleetguard.
FILTER EFFICIENCY
• Paper Media: 140 Microns * 50% efficiency * 0.12 gal/min (0.45 L/min) per ISO 16889.
• Wire Screen: Micron Rating is * 98.7% efficiency.
• Polyester Media: 140 Microns * 98.7% efficiency.
• Felt Media: Micron Rating is * 50% efficiency * 0.12 gal/min (0.45 L/min) per ISO 16889.

Average OEM filter is anywhere from 400 microns to 200 microns so not dang good.

The average oil filter is at least 100% efficient at 40 microns, the good ones at least 95% at 20 microns.

Heat is your transmission biggest killer, next comes filtration. For those of us that have factory equiped tranny oil coolers the second logical step for long transmission life is a remote mount transmission filter.




Example of a kit. Which includes a spin on adapter, and a quality oil filter, bosch, Mann, Fleetguard, Donaldson, and Baldwin will work great for this. You only need the normal ones which will get you filtration below 40 microns with no problem and all will hold fine against the transmission pressure which is less than 200psi in pretty much any automotive application. All the filter media is compatible with hydraulic fluid and is the same stuff in there hydraulic fluid filters.




I am going with a a Fleetguard LF3487 which is a sythetic media high flow filter that wil clean down to 2 microns but still has a higher rate of flow than a standard filter.

Here's the basic set up on a Nissan Elgrand. The filter just goes between the return line hose from the cooler to the transmission. Very easy to hook up. Standard Nissan transmission hose is 5/16" as are most imports. The other common size is 3/8" but you can squeeze 3/8" on the 5/16" with no problem. I am using the quality fuel line type hose clamps on all my barbed fittings.

So basically I am getting 50 times better filtration for my transmission with easy filter changes to boot. Add a magnet to your spin on filter and you have a super efficient set up. I use used hard drive magnets because they are cheap or free and damm strong.



Here is a extream example, tranny filter, power steering filter and remote mount oil filter. Hey some people are clean freaks I guess lol.


Now if only shops in the Philippines get wise to this and start carring the mounts for these. This will extend the life of your transmission and keep your fluid 50 times cleaner than OEM.