AAMCO Transmissions

I took my truck for the oil change. They honored the coupon but when they worked on the truck, they came out to the waiting room and told me I was leaking oil from "everywhere". I was given an estimate of several hundred dollars to replace the gaskets. I took it to another shop for a second opinion. They second shop put it on a lift and within a minute the mechanic told me that a valve cover was loose. He tightened it up and charged me $20. I have not had a problem since. That was six months ago. When I brought the truck in for another oil change last month, Richard asked about the engine work. I said I had it done elsewhere for $20. Richard was visibly irritated with my answer.
I just took my wife's car in to AAMCO for an oil change. While I was in the waiting room they came out to talk to me and told me that they had taken my car for a test drive and that it was pulling to the right. They told me the "left caliper was hanging up". I asked if the left caliper was hanging up, why was it pulling to the right? Richard told me he did not have time to explain it to me. He did however, have time to write up an estimate for over $700. I looked at the receipt and it included replacing both front brake calipers. I asked why did I have to replace both calipers? Richard told me that "He was amazed that I wanted to risk my wife's safety because I was so cheap". I took the car to a dealer immediately and told them I thought the brakes might be pulling. The DEALER checked out the car and said the brakes were working perfectly.
I am guessing that the coupons are a marketing loss leader program to get you in the door. I would guess that the staff is on a commission based compensation program. They did great oil changes but, if they recommend some other work, beware.