I live in an apt complex thats labeled "luxory apartment complex"... and almost every big black stain in a certain 2-3 parking spots are from one of my cars. My apt complex don't complain, but sometimes fat bitchy ladies who live adjacent to me do. Shouldn't be a problem doing it in your own parking lot.

If you haven't changed your tranny fluid forever, it may be a good idea to pick up 3qts of Penzoil Synchromesh and change it out too... you'll notice a nice difference after 100~500miles.