They over charged me for work they didn't actually do. I don't know much about cars, and I think they could tell this. Here is the long version of what happened: I got 'work' on my car here done about a year ago. They charged me over $800 for a tune up, to change all the fluids (including full transmission flush and radiator fluid), and to get it state certified. Recently my check engine light came on. When I took it to another mechanic, they said it was because I needed a tune up, and needed my transmission and radiator fluid changed. I told them that this was done last year, and they said there was no way this work was done a year ago. I took it to another mechanic for a second opinion, and they confirmed that my car hadn't gotten its scheduled tune up, and needed transmission and radiator fluids. So I paid over $800 for no work, and may have done damage to my car for driving it for a year without needed maintenance.