Overfilling by 2/10ths of a quart is not going to harm your engine. If you want to do the oil changes right, do them yourself. I have been using exactly 5 quarts (4.8 w/ oil filter is recommended) and have almost 40k miles, with no issues. I change my oil every 5,000 because my driving conditions, which are the same as described by 90% of people on these forums.I just found these in my owners manual. Now am mad! View attachment 189614 View attachment 189615
Another example of a car that I continually use 5 quarts instead of the 4.8 quarts, is my 2012 Chevy Sonic with the 1.8L. Been doing that since I got the car with 98k miles and haven't had any issues from being 2/10ths of a quart over the recommended level. That car has almost 175k miles on it now.
The only time I would be concerned is if they over fill the oil by 0.5-1 quarts or more. Otherwise, don't worry about it, these engines are engineered to have some sort of leeway with fluid levels. Transmissions are a whole different beast though.