I respect honesty and will return to those businesses that provide good service and I feel I can trust. The dealer told me my Nissan needed a cooling system flush. Concord Auto checked it out, told me the color was fine and the coolant was good to 30 below zero, and told me it didn't need changing at this time. He didn't charge me for that check and it saved me over a hundred dollars at the dealer. I'll be back to Concord Auto for my car service in the future.