Amsoil 10W-40 XL Synthetic Motor Oil - C5 Corvette. Amsoil Premium Protection Motor Oil is designed and engineered for higher mileage and high stress vehicles. XL synthetic Motor Oil resists oxidation and cold start up ear and develops a strong fluid film that keeps metal surfaces. Tested and tested again by every major independent lab and proven to be the best you can buy for your C5 Corvette.
Fitment: C5 Corvette and Z06 (1997 - 2004)