I got oil changes and services done on my vehicle ...

I got oil changes and services done on my vehicle while it was under warranty and most things were covered. After warranty was up, they have very little in the sense of customer loyalty. When I wanted them to help diagnose a check engine light, for $160, I decided I was done with Mauer Chev's poor/expensive services and 2 hour oil changes with an appointment. My local mechanic charged $40 to figure out what was wrong.