Originally Posted by bigrob126

You bet!! Alot! My Carrera, C5 Vett, My LS-2 GTO...the list goes on! Most high end cars, whether it be sports cars or luxury, the manufacturer requires you use Syn. You could probably use non syn, and have no issues, but if you'd have a motor prob, and the warranty was in force, and they investigate......trouble could be on your horizon