Sour Diesel is a legendary sativa-dominant strain that is extremely popular, potent and pungent. Although its genetic lineage can't be confirmed, it was developed in the 1990s and is thought to be a cross between Chemdawg and Super Skunk. Sour Diesel is best known for its strong aroma, which smells like skunk and gasoline mixed with notes of lemon, and its invigorating, cerebral high.