Carfax saved me thousands of dollars in repair bills! Well $4,000.00 at least. I purchased a 2001 Ford F-350 Super duty crew cab with a 7.3 diesel, 4x4. I searched for over a year and finally found a very low mile (60,000) truck. I purchased the truck and also got an extended warranty from a major insurer. After having the truck for seven (7) month I had to take it in for repairs. The first response from the warranty company was to deny the claim due to the mileage but after reviewing the Carfax history/ mileage report the claim was paid. Thanks for a great service, Fred