Valvoline 10W-40 DuraBlend Synthetic Blend Motor Oil - 1qt (Case of 6) (VV301-6PK) Unique blend of premium synthetic and conventional base oils with advanced additive technology Outperforms all leading conventional motor oils Provides increased protection during tough driving conditions such as cold starts, stop-and-go traffic and hauling and towing Approvals / Certifications: ILSAC GF-5 / GF-4, API SN/SM, API Resource Conserving