Sour Diesel, also known as "Sour D," is a legendary sativa-dominant hybrid cannabis strain renowned for its pungent, fuel-like aroma and fast-acting, energizing effects. Originating in the early 1990s New York City underground market, it has become a staple for both recreational and medical users. Sour Diesel is best known for its cerebral and invigorating high, making it a popular choice for daytime use. Users often experience a rapid onset of euphoria, heightened creativity, increased energy, focus, and an uplifted mood. It can also promote sociability and mental clarity.