Hello BITOG. In the stash I have 2 cases of Valvoline 5w30 conventional SM and one SN. And have one 5w30 Blend jug of MaxLife and 2 Super Tech 5w30 synthetic jugs. Also 24 quarts of Chevron Supreme 5w30. Thinking of using the Valvoline 5w30 conventional that's 2006 dated in Focus first to use up the oldest.