Even saying you used to be a mechanic nowadays brings a few furrowed brows . They are Technicians , Auto engineers or whatever fancy new title they come up with .Suppose the criminal fraternity and movie makers using the term for a gangster hit man didn't do us any favours either !!Someday our grand kids will say "Grandpa, what's a piston"? I'll tell them they came in a machine that made all the right sounds and stirred the soul. I like my electric refrigerator, but love my 350 R.