Production drive-line gearboxes used at an assembly plant have historically been replaced at 2-4 gearboxes per month.  The gearboxes tended to operate at fairly high temperatures.  Upon the application of Prolong AFMT the gearboxes remained only warm to the touch.  All 400+ gearboxes on the production line were treated with AFMT.  It was been over 41/2 years and the plant has had NO gearbox failures in Prolong-treated equipment.
Manufacturer of automotive parts