I would never, EVER do a oil change shop, a brake inspection or ANY thing to do with my car. I would rather pay $30 for my own oil change, than to have someone screw with my car...
The oil change places like to "pump up the price" by saying you need more things...
I found a wonderful place a mile from my home, who did an oil change the other day and they did not say I needed 15 more things... They have been so honest, second time visiting them and they always have the opportunity to say you need this, this, this and this. But they have not said I needed other things..
It's nice to get free things through mystery shopping but you can keep the oil change shops..
No thanks I say, to oil change shops!