Wait a Minute... is Group 3 synthetic good? is Group 1 dino good?.................................................................
is 18% group 3 Synthetic mixed with 82% Group 1 Dino oil good? I"ve used Supetech Semi Synthetic on 7 different oil changes in my Hyundai Tiburon.
I guess its good cuz my car has 85,000 miles and its running smooth still. but what about the internals?