This study aims to understand how the Decision Making Process of buying automotive Lubricants, mainly trying to understand each step that involves the decision of buying one lubricant or another. With this target on mind, a deep dive interview was conducted, followed by a 23 question survey distributed among each of the 5 steps related to this oil purchase process. The result showed that most of the lubricants consumers are the ones that identify for them selves the need of the oil change. We’ve also seen that they are more involved consumers than others and that the brand has a key role in determining the choice.