HEY if you plan on using CARFAX.com, dont it's not accurate at all. I ran mine on my own truck and it doesnt show the accident I had two years ago, that WAS reported to insurance, and WAS reported with the police/state troopers. Also it doesnt show that the ORIGINAL owner (I bought it with only 27k on it) ever had the truck.
Thats just what I have found while using it.
Russell