I use G&R for all of my auto needs because they are honest and very thorough. The professionals at G&R treat your auto like it was their own. They don't overcharge and are typically well under the competition. Call at speak with the owner, Carl Geier. Tell him that I referred you and ask for a 10% discount. From experience it's always better to have an appointment but if your vehicle is acting up Carl always finds a way to provide a diagnosis. They are the best I have found in Libertyville. You won't be disappointed!