Money matters to most everyone. People are buying Auto-Rx to keep there cars on the road (while they try to accumulate cash needed for replacemant parts) smart mechanics are using Auto-Rx just for that reason (they keep there customers, get the oil change/filter business) and at some point the customers money to relace worn parts.
Auto-Rx alters the effect of wear, since worn parts have been starved for lubrication (increasing wear) we can.t fix broken parts or seals that have been ripped or torn, when one of these defects is evident the customer has no choice. When it,s not the customer has an inexpensive way to stay on the road.