Sour Diesel is an extremely popular strain, distinguished by the fuel-like chemical smell of its flowers. It has a mostly sativa head high with some subtle physical indica relaxation, making it popular among recreational and medical users alike. Sour Diesel has a notoriously harsh, acrid smoke that can cause users to cough or make their sinuses water. The smoke has a sour and vaguely skunky taste that many describe as unpleasant; on the exhale, the diesel's almost ammonia-like tang stings the palate and may linger for a long time afterward. Sour Diesel's high comes on quickly in the form of a warm and pleasant head rush. An uplift in mood may be noticeable as well.