I have the correct fluid level, and dextron fluid.
I do not know how many miles are on it. I got the car with a broken odometer at 299K. Put in the odo from another car, and have logged close to 15K on my own.
It has not been slipping at all prior to this.
Found this
Try this repair when your Xmission won't shift About clogged screens?
Fluid does not smell burnt, and is a nice red color