The SIU Credit Union is a auto loan from SIU Credit Union. The ongoing APR is As low as 4.99% APR: new auto (2027-2025) 4.99% 24-60 months, 5.99% 72 months, 6.24% 75 months, 6.99% 84 months; used auto (2026-2015) 4.99% 24-60 months, 5.99% 72 months, 7.74% 84 months; used auto (2014-2011) 4.99%-5.74% 24-60 months; pre-owned (2010-2009) 4.99% 12-36 months. Loan terms: Up to 84 months depending on the vehicle.