“If you have money to pay off the loan but want to build your credit, holding it for 12 to 24 months is ideal. By doing so, you won’t accrue much interest but you will still build credit.
That doesn’t mean you have to get a 12- or 24-month loan, however. You can bring your monthly payments down with a 36- or 48-month loan.
The trade-off is that you might pay a tiny bit more in interest, but it’s entirely up to you and your preferences.”