Street Legal SAE 5W20 Synthetic Blend Oil (GF-6) delivers trusted engine protection and peak vehicle performance. To begin with, we formulate our 5W-20 synthetic blend with select synthetic base oils plus a state-of-the-art additive package. Street Legal provides added resistance to sludge formation and varnish deposits during stop-and-go driving. Furthermore, it maintains exceptional wear protection under severe driving conditions. Our 5W20 semi synthetic blend motor oil exceeds new car warranty requirements as defined by ILSAC standard GF-6A and API classification Resource Conserving SP.