A borrower can typically refinance an automotive loan as often as they desire, provided they meet the lender's requirements. Factors that may influence the ability to refinance include the current interest rates, the remaining balance on the original loan, the borrower's credit score, and any fees associated with refinancing. While there are no strict limits, it is important to consider the costs involved, such as potential prepayment penalties or fees from the lender, which can impact the overall savings from refinancing. Additionally, it is advisable to maintain a good credit score to secure better terms on a new loan. It may also be helpful to explore current financing options, which can often be found on relevant websites for more detailed information.