I always use autocheck and Carfax before buying a car. I gurantee a clean carfax "No accidents,No flood Damage.No fire damage,Mileage correct. CARFAX is the most reliable. I have had a lot of Autochecks show no accidents but when I check the Carfax it will show 1 or more accidents. I have attached just one of the many incorrect Autochecks I have come accross.