Was the original loan for a new car that you just bought? If so, there is usually a 30-day limit to refinance the vehicle as a new car loan. This is significant because loan interest rates are lower for new cars as compared to used cars.
After 30 days, you may be required to refinance your car using used-car rates. In other words, after 30 days, your new car has turned into a used car – at least as far as the lender is concerned.
This is actually generous on the lender’s part. The car dealer considers your vehicle to be a used car the instant you drive it off the lot.