Amsoil 5W-30 XL Synthetic Motor Oil - C6 Corvette. Amsoil Extended Life Oil is engineered for 10,000 Mile or Six Month Oil Change Intervals. XL Synthetic Motor Oil develops a strong fluid film that keeps metal surfaces separated while its anti-wear additives reduce wear. Tested and tested again by every major independent lab and proven to be the best you can buy for your C6 Corvette.
Fitment: C6 Corvette, Grand Sport and Z06 (2005 - 2013)