I have been reading a lot of posts on other forums about adding an external transmission filter, this is basically an oil filter that is spliced into your trans cooler lines. Many people think that this will keep there transmission fluid cleaner, in reality it may not, and it could cause a pressure drop in your transmission.
Before using auto-rx in my trans the fluid that I drained out was always a bright red color and there was hardly anything on the trans pan magnet, so I figured auto-rx in the trans would not do much of anything. Well it did, after draining the trans fluid that had 6 ounces of auto-rx in there it turned the fluid a dark burgundy color and my trans pan had a layer of silt on the bottom of the pan.
How did this happen, any junk that is in the trans fluid will get bonded inside the torque converter when it spins around, I saw this demonstration when I was watching a video for one of those 10 minute trans flushes. Many of these 10 minute trans flushes have solvents that can damage your seals.
The beauty of auto-rx is that it will liquify any junk inside your transmission and will not clog anything up. I have noticed after using auto-rx in the transmssion that it ran cooler and it shifted much better.
I feel a rare earth magnet in your trans pan is better than a external trans filter since if your trans filter in the pan filters down to 60 microns, most external trans filters go down to 29 microns, which is not that much of a difference.
If anyone is interested in rare earth magnets for the trans pan, PM me and I can tell you where you can pick up a good one for fairly cheap money, its good insurance.
Transmission repair and transmission rebuilding are very expensive, doing an auto-rx treatment in your transmission is much cheaper.
Most felt type trans filters usually trap down to 60 microns, whereas the screen filters trap down to 100 microns.
I wanted too add that before using auto-rx in my Marauder's transmission I took a temp reading with an infrared gun aimed at my trans pan, the temp was 122 degrees.
After flushing all of the old trans fluid that had 6 ounces of auto-rx in there for 1000 miles, now the pan temo is 90 degrees.
Remember the temp in the trans pan is ususally lower than the temp in the torque converter that can be about 50 degrees higher.
On my El Camino I can aim the infrared gun at the torque converter and the last temp I got was 150 degrees, and the pan temp was 100 degrees.
I attribute the lower temps to auto-rx since there are probably no deposits in the transmission, and the trans fluid can easily get to all of the parts inside the transmission.
