The First Financial Credit Union is a auto loan from First Financial Credit Union. The ongoing APR is New & Used Vehicles (up to 5 years old): as low as 3.99% (36 months) to as low as 5.99% (84 months, $25,000 minimum); Used Vehicles (5-7 years old): as low as 5.69% (36 months) to as low as 6.59% (67-75 months) (rates effective as of 6/08/2026). Loan terms: Up to 84 months ($25,000 minimum) for vehicles up to 5 years old; up to 75 months for used vehicles 5-7 years old.