Originally Posted By: SteveSRT8
Changing the fluid in an auto trans without changing the filter?
That's just nuts.
No, it ain't.
Originally Posted By: SteveSRT8
Anybody do that on an engine?
Though it uses many similar materials and, like an engine, has many spinning bits, the ATX is not an engine. They are two very different machines.
Originally Posted By: SteveSRT8
Auto trans generate all kinds of metal debris to go with the clutch particles.
ATX will generate steel and friction material particles that, unless the trans is being flogged with hard launches/hard driving and/or has terrible old worn-out fluid and/or is in the process of failing, are very small sub-20u, and are limited quantity. There will be a very small amount of very fine aluminum dust from valve body and pump housing wear. Almost no brass, copper, lead, or tin.
Originally Posted By: SteveSRT8
You NEED a new filter.
The particles that exist in a
healthy ATX are much too small to be captured by the in-pan filter, new or old. That 4L65E has a synthetic media that is 60 micron at its very best, and 120 micron at worst.
The way to get rid of the wear particles is to do a nice, hot flush with a detergent-based additive (like that new Amsoil stuff, or Lubegard). Then, add a Megnefine, and watch the particle count improve like in Jim Allen's truck!
Originally Posted By: Jim Allen
The Magnefine reduced the ISO cleanliness code of the oil in the trans of my '05 F150HD from an already clean 15/14/12 to 13/12/9. That's an 81 percent reduction in the particle count in 2200 miles.