True???

People have different ways of doin things its all in ones opinion. I prefer to use the stuff that is made to work on the car even if I have to spend alittle more than run some part that aint made for the car and have it fail. Yes some people have used it with sucess and others have not. Its all a preference and I just prefer to have the correct stuff.
I mean how much are you really saving usin junkyard part that may last 30 thousand miles or 100