I took my friend to this shop to get her oil changed. She said they had a deal going for a $10 oil change with tire rotation. They asked what kind of oil she usually puts in the car. She says either full synthetic or synthetic blend. They then proceed to tell us that you should NEVER go back to anything else once you put full synthetic oil in the engine (which is a huge MYTH/LIE, he must have assumed I didn't know anything about cars because he insisted on trying to convince me to go full synthetic) I told them we'll just do the synthetic blend. They agree, take the car in the garage for about 20-30 mins and come back in to tell us that her car doesn't take synthetic blend oil and we would have to pay for full synthetic.
I laughed and asked for the keys back. Auto shops like this try to take advantage of people everyday. Be smart and don't ever take your car to this place.