you have to measure it hot, when you have been driving around for a good 20 minutes at least. the difference between hot and cold measurements is about a third of a quart. do a search on overfilling transmission fluid - to make a long story short, just siphon off the excess, and make sure that you don't contaminate the fluid...
1993 300e-2.8 - gone now <sigh>
"Do not adjust your mind, it's reality that's malfunctioning"