DIY ATF fluid flush - fluid return lines

[scylla]

I did this myself during the summer months. Instead of pointing the hose into a drain pan I attached a short length of clear tubing with a hose barb between.

I ran the tubing up over the front of the car into a clear graduated container. I only ran the engine long enough to fill the container up to the 2 quart line. I was a little paranoid that the pump would run dry if I couldn't keep up my refilling thru the trans dipstick tube. Between engine runs I would pour 2 quarts of fresh fluid back into trans.

I continued to do the flushing until the fluid running thru the clear tube looked new. The difference in color between old and new fluid at 50,000 miles was pretty plain to see. I used around 3 gallons total.

I also used Maxlife ATF. Since then everything runs fine and I am certain fuel m.p.g. has increased since the flush.

Also, it's too bad I was unable to record trans temps before and after flush with the Torque app. It seems those values aren't available through the Torque app.