Only been in the system for about 48 hours, and the only driving has been "around"-- According to my therapist, though, the first benefit that happens w/Amsoil's trans fluids (and,presumably other synthetics as well) is about a 40*F drop in temps---less friction, AND! better heat dissipation yahoo! ... looking forward to a car-retrieval trip to Albuquerque,NM to feel out the towing again... I know I didn't tell you much, but wouldn't want the "post" to drift down and get lost under some of the more exciting stuff that happens here---rich